139218749 HUAWEI OCS Business Process Description

HUAWEI OCSV100R002C02

Business Process Description

Issue 01

Date 2010-07-28

HUAWEI TECHNOLOGIES CO., LTD.

Copyright Huawei Technologies Co., Ltd. 2010-2010. All rights reserved.No part of this document may be reproduced or transmitted in any form or by any means without prior writtenconsent of Huawei Technologies Co., Ltd. Trademarks and Permissions

and other Huawei trademarks are trademarks of Huawei Technologies Co., Ltd.All other trademarks and trade names mentioned in this document are the property of their respective holders. NoticeThe purchased products, services and features are stipulated by the contract made between Huawei and thecustomer. All or part of the products, services and features described in this document may not be within thepurchase scope or the usage scope. Unless otherwise specified in the contract, all statements, information,and recommendations in this document are provided "AS IS" without warranties, guarantees or representationsof any kind, either express or implied.

The information in this document is subject to change without notice. Every effort has been made in thepreparation of this document to ensure accuracy of the contents, but all statements, information, andrecommendations in this document do not constitute the warranty of any kind, express or implied.

Huawei Technologies Co., Ltd.Address: Huawei Industrial Base

Bantian, LonggangShenzhen 518129People's Republic of China

Website: http://www.huawei.com

Email: [email protected]

Issue 01 (2010-07-28) Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.

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http://www.huawei.commailto:[email protected]

About This Document

Intended AudienceThis document describes the business processes of the HUAWEI Online Charging System(OCS).

This document is intended for:

l Policy planning engineers

l Technical support engineers

Change HistoryUpdates between document issues are cumulative. Therefore, the latest document issue containsall updates made in previous issues.

Updates in Issue 01 (2010-07-28)Initial commercial release.

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Contents

About This Document...................................................................................................................iii

1 Overview of Business Processes.............................................................................................1-11.1 Concept of the OCS System............................................................................................................................1-21.2 System Networking.........................................................................................................................................1-2

2 Call Charging Processes............................................................................................................2-12.1 Overview.........................................................................................................................................................2-22.2 Process of Charging an Ordinary Call.............................................................................................................2-2

2.2.1 Process of Charging a Call Between Two OCS Subscribers.................................................................2-22.2.2 Process of Charging a Call Between an OCS Subscriber and a Subscriber of Another Network.........2-7

2.3 Process of Charging a Forwarded Call............................................................................................................2-82.3.1 Process of Charging a Call That Is Forwarded Unconditionally............................................................2-82.3.2 Process of Charging a Call That Is Forwarded Conditionally.............................................................2-14

2.4 Reference.......................................................................................................................................................2-20

3 SMS Charging Processes..........................................................................................................3-13.1 Overview.........................................................................................................................................................3-23.2 Process of Charging an Ordinary Short Message Through DCC....................................................................3-23.3 Process of Charging an Ordinary Short Message Based on SMPP+..............................................................3-33.4 Process of Charging an Ordinary Short Message Based on CAMEL3...........................................................3-43.5 Reference.........................................................................................................................................................3-6

4 Activation Processes..................................................................................................................4-14.1 Overview.........................................................................................................................................................4-24.2 Process of Activating an Account by Making the First Call...........................................................................4-24.3 Process of Activating an Account Through the WebService Interface...........................................................4-44.4 Process of Activating an Account on the SMAP............................................................................................4-54.5 Process of Activating an Account Through IVR............................................................................................4-54.6 Process of Activating an Account by Sending a Short Message.....................................................................4-74.7 Process of Activating an Account by Recharging the Account by Using a Recharge Card.........................4-114.8 Reference.......................................................................................................................................................4-12

5 Recharge Processes.....................................................................................................................5-15.1 Overview.........................................................................................................................................................5-25.2 Process of Recharging an Account by Using a Recharge Card Through IVR................................................5-2

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5.3 Process of Recharging an Account by Using a Recharge Card Through USSD............................................ 5-85.4 Process of Recharging an Account by Using a Recharge Card Through a Short Message..........................5-115.5 Process of Recharging an Account by Using a Recharge Card Manually....................................................5-145.6 Process of Recharging an Account by Cash..................................................................................................5-175.7 Process of Recharging an Account by Dialing a Recharge Access Code.....................................................5-185.8 Process of Recharging an Account Through the EVC..................................................................................5-195.9 Reference.......................................................................................................................................................5-22

6 Balance Query Processes...........................................................................................................6-16.1 Overview.........................................................................................................................................................6-26.2 Process of Querying the Account Balance of a Subscriber Through IVR......................................................6-2

6.2.1 Process of Querying the Account Balance of a Subscriber Through IVR When the Subscriber Is Free ofCharge............................................................................................................................................................. 6-26.2.2 Process of Querying the Account Balance of a Subscriber Through IVR When the Subscriber Is Charged.........................................................................................................................................................................6-3

6.3 Process of Querying the Account Balance of a Subscriber Through USSD...................................................6-46.3.1 Process of Querying the Account Balance of a Subscriber Through USSD When the Subscriber Is Freeof Charge.........................................................................................................................................................6-46.3.2 Process of Querying the Account Balance of a Subscriber Through USSD When the Subscriber Is Charged.........................................................................................................................................................................6-5

6.4 Process of Querying the Account Balance of a Subscriber by Sending a Short Message..............................6-66.4.1 Process of Querying the Account Balance of a Subscriber by Sending a Short Message When theSubscriber Is Free of Charge...........................................................................................................................6-66.4.2 Process of Querying the Account Balance of a Subscriber by Sending a Short Message When theSubscriber Is Charged..................................................................................................................................... 6-7

6.5 Process of Querying the Account Balance of a Subscriber Through the WebService Interface.................... 6-96.6 Process of Querying the Account Balance of a Subscriber on the SMAP....................................................6-106.7 Reference.......................................................................................................................................................6-10

7 Balance Transfer Processes.......................................................................................................7-17.1 Overview.........................................................................................................................................................7-27.2 Process of Transferring a Balance Through the IVR......................................................................................7-27.3 Process of Transferring a Balance Through the USSD...................................................................................7-47.4 Process of Transferring a Balance Through the WebService Interface.......................................................... 7-77.5 Process of Transferring a Balance on the SMAP............................................................................................7-87.6 Reference.........................................................................................................................................................7-9

8 Monthly Settlement Processes.................................................................................................8-18.1 Overview.........................................................................................................................................................8-28.2 Monthly Settlement Process............................................................................................................................8-28.3 Process of Notifying a Subscriber of the Monthly Settlement by Short Message..........................................8-28.4 Reference.........................................................................................................................................................8-3

9 Registration and Deregistration Processes............................................................................9-19.1 Overview.........................................................................................................................................................9-29.2 Subscriber Registration Processes...................................................................................................................9-2

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9.2.1 Process of Registering a Subscriber.......................................................................................................9-29.2.2 Process of Registering Subscribers in Batches......................................................................................9-3

9.3 Subscriber Deregistration Processes...............................................................................................................9-49.3.1 Process of Deregistering a Subscriber....................................................................................................9-49.3.2 Process of Deregistering Subscribers in Batches...................................................................................9-4

9.4 Reference.........................................................................................................................................................9-5

10 Password Change Processes.................................................................................................10-110.1 Overview.....................................................................................................................................................10-210.2 Process of Changing a Password Through the WebService Interface........................................................10-210.3 Process of Changing a Password on the SMAP..........................................................................................10-310.4 Process of Changing a Password Through USSD.......................................................................................10-310.5 Process of Changing a Password Through IVR..........................................................................................10-410.6 Reference.....................................................................................................................................................10-6

11 MMS Charging Processes.....................................................................................................11-111.1 Overview.....................................................................................................................................................11-211.2 Process of Charging for the MMS Service Through DCC..........................................................................11-211.3 Process of Charging for the MMS Service Through EMPP.......................................................................11-311.4 Reference.....................................................................................................................................................11-4

12 GPRS Charging Processes....................................................................................................12-112.1 Overview.....................................................................................................................................................12-212.2 Process of Charging for the GPRS Service Through DCC.........................................................................12-212.3 Process of Charging for the GPRS Service Through CAMEL3.................................................................12-412.4 Reference.....................................................................................................................................................12-6

13 International Roaming Service Processes.........................................................................13-113.1 Overview.....................................................................................................................................................13-213.2 Process of Charging for an International Roaming Call.............................................................................13-2

13.2.1 Process of Charging for an International Roaming Call in CAMEL2 Mode.....................................13-213.2.2 Process of Charging for an International Roaming Call in UCB Mode.............................................13-4

13.3 Process of Charging for an International Short Message............................................................................13-713.3.1 Process of Charging for an International Short Message Based on SMPP+......................................13-7

13.4 Reference.....................................................................................................................................................13-8

14 FN Service Processes..............................................................................................................14-114.1 Overview.....................................................................................................................................................14-214.2 Processes of Enabling the FN Service for a Subscriber..............................................................................14-2

14.2.1 Process of Enabling the FN Service for a Subscriber Through IVR..................................................14-214.2.2 Process of Enabling the FN Service for a Subscriber Through the WebService Interface................14-414.2.3 Process of Enabling the FN Service for a Subscriber on the SMAP..................................................14-514.2.4 Processes of Enabling the FN Service for a Subscriber Through USSD...........................................14-614.2.5 Process of Enabling the FN Service for a Subscriber Through a Short Message..............................14-9

14.3 Processes of Disabling the FN Service for a Subscriber...........................................................................14-10



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14.3.1 Process of Disabling the FN Service for a Subscriber Through IVR...............................................14-1014.3.2 Process of Disabling the FN Service for a Subscriber Through the WebService Interface.............14-1114.3.3 Process of Disabling the FN Service for a Subscriber on the SMAP..............................................14-1214.3.4 Processes of Disabling the FN Service for a Subscriber Through USSD........................................14-1314.3.5 Process of Disabling the FN Service for a Subscriber Through a Short Message...........................14-15

14.4 Processes of Adding or Changing an FN of a Subscriber.........................................................................14-1614.4.1 Process of Adding or Changing an FN of a Subscriber Through IVR.............................................14-1614.4.2 Process of Adding or Changing an FN of a Subscriber Through the WebService Interface...........14-1814.4.3 Process of Adding or Changing an FN of a Subscriber on the SMAP.............................................14-1914.4.4 Processes of Adding or Changing an FN of a Subscriber Through USSD......................................14-2014.4.5 Process of Adding or Changing an FN of a Subscriber Through a Short Message.........................14-23

14.5 Processes of Querying an FN of a Subscriber...........................................................................................14-2414.5.1 Process of Querying an FN of a Subscriber Through IVR..............................................................14-2414.5.2 Process of Querying an FN of a Subscriber Through the WebService Interface.............................14-2514.5.3 Process of Querying an FN of a Subscriber on the SMAP..............................................................14-2514.5.4 Processes of Querying an FN of a Subscriber Through USSD........................................................14-2614.5.5 Process of Querying an FN of a Subscriber Through a Short Message...........................................14-28

14.6 Reference...................................................................................................................................................14-29

15 ICS Service Processes............................................................................................................15-115.1 Overview.....................................................................................................................................................15-215.2 Processes of Enabling the ICS Service for a Subscriber.............................................................................15-2

15.2.1 Processes of Enabling the ICS Service for a Subscriber Through IVR.............................................15-215.2.2 Processes of Enabling the ICS Service for a Subscriber Through the WebService Interface............15-415.2.3 Processes of Enabling the ICS Service for a Subscriber on the SMAP.............................................15-5

15.3 Processes of Disabling the ICS Service for a Subscriber............................................................................15-615.3.1 Processes of Disabling the ICS Service for a Subscriber Through IVR............................................15-615.3.2 Processes of Disabling the ICS Service for a Subscriber Through the WebService Interface..........15-715.3.3 Processes of Disabling the ICS Service for a Subscriber on the SMAP............................................15-8

15.4 Processes of Adding or Changing an ICS number of a Subscriber.............................................................15-815.4.1 Process of Adding or Changing an ICS number of a Subscriber Through IVR................................15-915.4.2 Process of Adding or Changing an ICS number of a Subscriber Through the WebService Interface.....................................................................................................................................................................15-1015.4.3 Process of Adding or Changing an ICS number of a Subscriber on the SMAP..............................15-11

15.5 Processes of Querying an ICS number of a Subscriber............................................................................15-1215.5.1 Processes of Querying an ICS number of a Subscriber Through IVR.............................................15-1315.5.2 Processes of Querying an ICS number of a Subscriber Through the WebService Interface...........15-1315.5.3 Processes of Querying an ICS number of a Subscriber on the SMAP.............................................15-14

15.6 Process of ICS Monthly Settlement .........................................................................................................15-1515.7 Reference...................................................................................................................................................15-15

16 Home Zone Service Processes..............................................................................................16-116.1 Overview.....................................................................................................................................................16-216.2 Processes of Enabling the Home Zone Service for a Subscriber................................................................16-2

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16.2.1 Process of Enabling the Home Zone Service for a Subscriber Through IVR....................................16-216.2.2 Process of Enabling the Home Zone Service for a Subscriber Through the WebService Interface.......................................................................................................................................................................16-416.2.3 Process of Enabling the Home Zone Service for a Subscriber on the SMAP....................................16-5

16.3 Processes of Disabling the Home Zone Service for a Subscriber...............................................................16-616.3.1 Process of Disabling the Home Zone Service for a Subscriber Through IVR...................................16-616.3.2 Process of Disabling the Home Zone Service for a Subscriber Through the WebService Interface.......................................................................................................................................................................16-716.3.3 Process of Disabling the Home Zone Service for a Subscriber on the SMAP...................................16-8

16.4 Processes of Adding or Changing a Home Zone of a Subscriber...............................................................16-816.4.1 Process of Adding or Changing a Home Zone of a Subscriber Through IVR...................................16-916.4.2 Process of Adding or Changing a Home Zone of a Subscriber Through the WebService Interface.....................................................................................................................................................................16-1016.4.3 Process of Adding or Changing a Home Zone of a Subscriber on the SMAP.................................16-11

16.5 Processes of Querying a Home Zone of a Subscriber...............................................................................16-1216.5.1 Process of Querying a Home Zone of a Subscriber Through IVR...................................................16-1316.5.2 Process of Querying a Home Zone of a Subscriber Through the WebService Interface.................16-1416.5.3 Process of Querying a Home Zone of a Subscriber on the SMAP..................................................16-14

16.6 Reference...................................................................................................................................................16-15

17 Child-Parent Card Service Processes..................................................................................17-117.1 Overview.....................................................................................................................................................17-217.2 Process of Subscribing to a Product............................................................................................................17-2

17.2.1 Process of Subscribing to a Child-Parent Card Product Through the WebService Interface............17-317.3 Process of Unsubscribing from a Product...................................................................................................17-4

17.3.1 Process of Unsubscribing from a Child-Parent Card Product Through the WebService Interface. . .17-417.4 Process of Changing a Consumption Limit.................................................................................................17-5

17.4.1 Process of Changing a Consumption Limit Through the WebService Interface...............................17-517.4.2 Process of Changing a Consumption Limit on the SMAP.................................................................17-617.4.3 Process of Changing a Consumption Limit Through the IVR...........................................................17-6

17.5 Process of Recharging a Child Card and a Parent Card..............................................................................17-717.5.1 Process of Recharging a Child Card and a Parent Card Through the IVR........................................17-817.5.2 Process of Recharging a Child Card and a Parent Card Through the USSD.....................................17-9

17.6 Process of Performing Monthly Settlement for a Child Card and a Parent Card......................................17-1017.7 Reference...................................................................................................................................................17-10

18 Passby Processes.....................................................................................................................18-118.1 Overview.....................................................................................................................................................18-218.2 Process of Passing by a Service Manually..................................................................................................18-218.3 Process of Passing By a Service Automatically..........................................................................................18-418.4 Process of Passing by a Service by the SCP Database................................................................................18-518.5 Process of Passing by a Service by the Physical Database of the CBP......................................................18-818.6 Process of Passing by Data Services by the MDSP....................................................................................18-818.7 Reference.....................................................................................................................................................18-9



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19 Audit Process...........................................................................................................................19-119.1 Overview.....................................................................................................................................................19-219.2 Audit Process...............................................................................................................................................19-219.3 Reference.....................................................................................................................................................19-2

A Glossary.....................................................................................................................................A-1A.1 Numerics........................................................................................................................................................A-2A.2 A....................................................................................................................................................................A-2A.3 B....................................................................................................................................................................A-2A.4 C....................................................................................................................................................................A-3A.5 D....................................................................................................................................................................A-4A.6 E.....................................................................................................................................................................A-4A.7 F.....................................................................................................................................................................A-4A.8 G....................................................................................................................................................................A-5A.9 H....................................................................................................................................................................A-5A.10 I....................................................................................................................................................................A-5A.11 M..................................................................................................................................................................A-5A.12 N..................................................................................................................................................................A-6A.13 O..................................................................................................................................................................A-6A.14 P...................................................................................................................................................................A-6A.15 R..................................................................................................................................................................A-7A.16 S...................................................................................................................................................................A-7A.17 T...................................................................................................................................................................A-7A.18 U..................................................................................................................................................................A-8A.19 V..................................................................................................................................................................A-8A.20 W.................................................................................................................................................................A-8

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Figures

Figure 1-1 Typical physical networking diagram of the OCS............................................................................. 1-3Figure 2-1 Normal process of charging the calling party in a call between two OCS subscribers......................2-3Figure 2-2 Normal process of charging the called party in a call between two OCS subscribers....................... 2-6Figure 2-3 Normal process of charging the calling party in a call made by an OCS subscriber to a subscriber ofanother network.....................................................................................................................................................2-7Figure 2-4 Charging process when a call made by an OCS subscriber to another OCS subscriber is unconditionallyforwarded to a third OCS subscriber.....................................................................................................................2-9Figure 2-5 Charging process when a call made by an OCS subscriber to another OCS subscriber is unconditionallyforwarded to a non-OCS subscriber....................................................................................................................2-12Figure 2-6 Charging process when a call made by a non-OCS subscriber to an OCS subscriber is unconditionallyforwarded to another OCS subscriber.................................................................................................................2-13Figure 2-7 Charging process when a call made by an OCS subscriber to another OCS subscriber is conditionallyforwarded to a third OCS subscriber...................................................................................................................2-15Figure 2-8 Charging process when a call made by an OCS subscriber to another OCS subscriber is conditionallyforwarded to a non-OCS subscriber....................................................................................................................2-18Figure 2-9 Charging process when a call made by a non-OCS subscriber to an OCS subscriber is conditionallyforwarded to another OCS subscriber.................................................................................................................2-19Figure 3-1 Process of charging an Ordinary short message through DCC.......................................................... 3-2Figure 3-2 Process of charging for an ordinary short message based on SMPP+................................................3-3Figure 3-3 Process of charging for an ordinary short message based on CAMEL3............................................3-5Figure 4-1 Process of activating an account by making the first call...................................................................4-3Figure 4-2 Process of activating an account through the WebService interface..................................................4-4Figure 4-3 Process of activating an account on the SMAP..................................................................................4-5Figure 4-4 Normal process of activating an account through IVR...................................................................... 4-6Figure 4-5 Normal process of activating an account by sending a short message through SMPP+....................4-8Figure 4-6 Normal process of activating an account by sending a short message through CAMEL3...............4-10Figure 4-7 Process of Activating an Account by Recharging the Account by Using a Recharge Card............4-11Figure 5-1 Process of recharging the personal account of a subscriber through IVR..........................................5-3Figure 5-2 Process of recharging the account of another OCS subscriber through IVR..................................... 5-6Figure 5-3 Process of recharging an account through USSD...............................................................................5-9Figure 5-4 Normal process of recharging an account by using a recharge card through a short message.........5-12Figure 5-5 Normal process of recharging an account manually.........................................................................5-15Figure 5-6 Normal process of recharging an account by cash...........................................................................5-17Figure 5-7 Normal process of recharging the personal account of a subscriber by dialing the recharge access code.............................................................................................................................................................................5-18

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Figure 5-8 Process of recharging an account through the EVC not in DCC mode............................................5-20Figure 5-9 Process of recharging an account through the EVC in DCC mode..................................................5-21Figure 6-1 Normal process of querying the account balance of a subscriber through IVR when the subscriber isfree of charge.........................................................................................................................................................6-2Figure 6-2 Normal process of querying the account balance of a subscriber through IVR when the subscriber ischarged..................................................................................................................................................................6-3Figure 6-3 Normal process of querying the account balance of a subscriber through USSD when the subscriber isfree of charge.........................................................................................................................................................6-4Figure 6-4 Normal process of querying the account balance of a subscriber through USSD when the subscriber ischarged..................................................................................................................................................................6-5Figure 6-5 Normal process of querying the account balance of a subscriber by sending a short message when thesubscriber is free of charge....................................................................................................................................6-6Figure 6-6 Normal process of querying the account balance of a subscriber by sending a short message when thesubscriber is charged.............................................................................................................................................6-8Figure 6-7 Normal process of querying the account balance of a subscriber through the WebService interface...............................................................................................................................................................................6-9Figure 6-8 Normal process of querying the account balance of a subscriber on the SMAP..............................6-10Figure 7-1 Process of transferring a balance through the IVR.............................................................................7-3Figure 7-2 Process of transferring a balance through the USSD (triggered in U-CSI mode)..............................7-5Figure 7-3 Process of transferring a balance through the USSD (triggered in MAP mode)................................7-6Figure 7-4 Process of transferring a balance through the WebService interface.................................................7-7Figure 7-5 Process of transferring a balance on the SMAP.................................................................................7-8Figure 8-1 Process of notifying a subscriber of the monthly settlement by short message.................................8-2Figure 9-1 Process of registering a subscriber.....................................................................................................9-2Figure 9-2 Process of registering subscribers in batches......................................................................................9-3Figure 9-3 Process of deregistering a subscriber..................................................................................................9-4Figure 9-4 Process of deregistering subscribers in batches..................................................................................9-5Figure 10-1 Normal process of changing a password through the WebService interface.................................10-2Figure 10-2 Normal process of changing a password on the SMAP.................................................................10-3Figure 10-3 Normal process of changing a password through USSD...............................................................10-4Figure 10-4 Normal process of changing a password through IVR...................................................................10-5Figure 11-1 Normal process of charging for the MMS service online through DCC........................................11-2Figure 11-2 Normal process of charging for the MMS service online through EMPP......................................11-3Figure 12-1 Process of charging for the GPRS service through DCC...............................................................12-3Figure 12-2 Process of charging for the GPRS service through CAMEL3.......................................................12-5Figure 13-1 Normal process of charging for an international roaming call in CAMEL2 mode........................13-3Figure 13-2 Normal process of charging for an international roaming call in UCB mode................................13-5Figure 13-3 Normal process of charging for an international short message based on SMPP+........................13-7Figure 14-1 Normal process of enabling the FN service for a subscriber through IVR....................................14-3Figure 14-2 Normal process of enabling the FN service for a subscriber through the WebService interface.............................................................................................................................................................................14-4Figure 14-3 Normal process of enabling the FN service for a subscriber on the SMAP...................................14-5Figure 14-4 Normal process of enabling the FN service for a subscriber through USSD (triggered in U-CSI mode).............................................................................................................................................................................14-7

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Figure 14-5 Normal process of enabling the FN service for a subscriber through USSD (triggered in MAP mode).............................................................................................................................................................................14-8Figure 14-6 Normal process of enabling the FN service for a subscriber through a short message..................14-9Figure 14-7 Normal process of disabling the FN service for a subscriber through IVR..................................14-11Figure 14-8 Normal process of disabling the FN service for a subscriber through the WebService interface...........................................................................................................................................................................14-12Figure 14-9 Normal process of disabling the FN service for a subscriber on the SMAP................................14-13Figure 14-10 Normal process of disabling the FN service for a subscriber through USSD (triggered in U-CSI mode)...........................................................................................................................................................................14-14Figure 14-11 Normal process of disabling the FN service for a subscriber through USSD (triggered in MAP mode)...........................................................................................................................................................................14-15Figure 14-12 Normal process of disabling the FN service for a subscriber through a short message.............14-16Figure 14-13 Normal process of adding or changing an FN of a subscriber through IVR..............................14-17Figure 14-14 Normal process of adding or changing an FN of a subscriber through the WebService interface...........................................................................................................................................................................14-18Figure 14-15 Normal process of adding or changing an FN of a subscriber on the SMAP.............................14-19Figure 14-16 Normal process of adding or changing an FN of a subscriber through USSD (triggered in U-CSImode).................................................................................................................................................................14-21Figure 14-17 Normal process of adding or changing an FN of a subscriber through USSD (triggered in MAP mode)...........................................................................................................................................................................14-22Figure 14-18 Normal process of adding or changing an FN of a subscriber through a short message............14-23Figure 14-19 Process of querying an FN of a subscriber through IVR............................................................14-24Figure 14-20 Normal process of querying an FN of a subscriber through the WebService interface.............14-25Figure 14-21 Process of querying an FN of a subscriber on the SMAP..........................................................14-26Figure 14-22 Normal process of querying an FN of a subscriber through USSD (triggered in U-CSI mode)...........................................................................................................................................................................14-27Figure 14-23 Normal process of querying an FN of a subscriber through USSD (triggered in MAP mode)...........................................................................................................................................................................14-28Figure 14-24 Normal process of querying an FN of a subscriber through a short message............................14-29Figure 15-1 Normal process of enabling the ICS service for a subscriber through IVR...................................15-3Figure 15-2 Normal process of enabling the ICS service for a subscriber through the WebService interface.............................................................................................................................................................................15-4Figure 15-3 Normal process of enabling the ICS service for a subscriber on the SMAP..................................15-5Figure 15-4 Normal process of disabling the ICS service for a subscriber through IVR..................................15-6Figure 15-5 Normal process of disabling the ICS service for a subscriber through the WebService interface.............................................................................................................................................................................15-7Figure 15-6 Normal process of disabling the ICS service for a subscriber on the SMAP.................................15-8Figure 15-7 Normal process of adding or changing an ICS number of a subscriber through IVR....................15-9Figure 15-8 Normal process of adding or changing an ICS number of a subscriber through the WebService interface...........................................................................................................................................................................15-11Figure 15-9 Normal process of adding or changing an ICS number of a subscriber on the SMAP................15-12Figure 15-10 Process of querying an ICS number of a subscriber through IVR.............................................15-13Figure 15-11 Normal process of querying an ICS number of a subscriber through the WebService interface...........................................................................................................................................................................15-14Figure 15-12 Process of querying an ICS number of a subscriber on the SMAP............................................15-14Figure 16-1 Normal process of enabling the Home Zone service for a subscriber through IVR.......................16-3

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Figure 16-2 Normal process of enabling the Home Zone service for a subscriber through the WebService interface.............................................................................................................................................................................16-4Figure 16-3 Normal process of enabling the Home Zone service for a subscriber on the SMAP.....................16-5Figure 16-4 Normal process of disabling the Home Zone service for a subscriber through IVR......................16-6Figure 16-5 Normal process of disabling the Home Zone service for a subscriber through the WebService interface.............................................................................................................................................................................16-7Figure 16-6 Normal process of disabling the Home Zone service for a subscriber on the SMAP....................16-8Figure 16-7 Normal process of adding or changing a Home Zone of a subscriber through IVR......................16-9Figure 16-8 Normal process of adding or changing a Home Zone of a subscriber through the WebService interface...........................................................................................................................................................................16-11Figure 16-9 Normal process of adding or changing a Home Zone of a subscriber on the SMAP...................16-12Figure 16-10 Process of querying a Home Zone of a subscriber through IVR................................................16-13Figure 16-11 Normal process of querying a Home Zone of a subscriber through the WebService interface...........................................................................................................................................................................16-14Figure 16-12 Process of querying a Home Zone of a subscriber on the SMAP..............................................16-15Figure 17-1 Process of subscribing to a child-parent card product through the WebService interface.............17-3Figure 17-2 Process of unsubscribing from a child-parent card product through the WebService interface.............................................................................................................................................................................17-4Figure 17-3 Process of changing a consumption limit through the WebService interface................................17-5Figure 17-4 Process of changing a consumption limit on the SMAP................................................................17-6Figure 17-5 Process of changing a consumption limit through the IVR............................................................17-7Figure 17-6 Process of recharging a common child card through the IVR........................................................17-8Figure 18-1 Normal process of passing by a service manually..........................................................................18-3Figure 18-2 Process of passing by a CAMEL2 voice call by the SCP database in the calling process.............18-5Figure 18-3 Process of passing by a CAMEL2 voice call by the SCP database in the called process..............18-7Figure 18-4 Networking about passing by data services by the MDSP.............................................................18-9

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1 Overview of Business ProcessesAbout This Chapter

1.1 Concept of the OCS SystemThe Online Charging System (OCS) is an uniform charging platform that helps telecom networkcarriers to charge voice, data and multimedia services of fixed, mobile, and data networks.

1.2 System NetworkingThis chapter describes the typical networking and the function of each NE of the OCS system.

HUAWEI OCSBusiness Process Description 1 Overview of Business Processes


1-1

1.1 Concept of the OCS SystemThe Online Charging System (OCS) is an uniform charging platform that helps telecom networkcarriers to charge voice, data and multimedia services of fixed, mobile, and data networks.

The OCS system helps telecom network carriers to conform to the complicated operationenvironment, new services, different cooperators, and detailed customer types.

The OCS system can run on the Global System Of Mobile Telephone (GSM) network, CodeDivision Multiple Access (CDMA) network , Time Division Multiple Access (TDMA) network,Session Initiation Protocol (SIP) network and Next Generation Network (NGN).

In addition, the system can precisely realize the credit control to subscribers at a maximum. Inthis way, the risk of arrears can be reduced, and the revenue loss of carriers can be reducedaccordingly.

The OCS system provides the functions such as:

l Product management

l Resource management

l Rating and billing

l Credit control

l Recharge center

l Call control

The OCS system is of good expendability and convergence. Through the convergence withexternal charging system, the OCS system can provide a uniform charging platform, a uniformservice management platform and a uniform customer care platform for prepaid subscribers,postpaid subscribers and hybrid subscriber.

1.2 System NetworkingThis chapter describes the typical networking and the function of each NE of the OCS system.

The OCS system is the core charging system in the carrier networking. The core components ofthe OCS system, the SCP, CBP, and BMP, form the typical networking of the OCS system. Withthese components, the OCS system provides diversified interfaces for external systems andinteracts with the external systems flexibly.

Figure 1-1 shows the typical physical networking diagram of the OCS system.

1 Overview of Business ProcessesHUAWEI OCS


1-2 Huawei Proprietary and ConfidentialCopyright Huawei Technologies Co., Ltd.

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Figure 1-1 Typical physical networking diagram of the OCS

BMP: Business Manager Point CBP: Convergent Billing Point

CRM: Customer Relations Management GFEP: General Front End Processor

GGSN: Gateway GPRS Support Node HLR: Home Location Register

iManager I2000: Network management system iWEB: Report system

MSC: Mobile Switching Center MMSC: Multimedia Messaging Service Center

RBI: Record Bill Interface SCP: Service Control Point

SMSC: Short Message Service Center SSP: Service Switching Point

SS7: No.7 Signaling Network URP: Universal Resource Platform

USAU: Universal Signaling Access Point UVC: Uniform Voucher Center



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BMPThe BMP is the core component of the service operation management in the OCS system. TheBMP manages the system, products, customers, resources, and charging and provides customerservices. In certain networking, the BMP provides the third-party system with the WebServiceinterface for handling customer services instead of directly providing the customer servicefunction.

SCPThe SCP provides the call access and call control functions in the OCS system.

CBPThe OCS system separates the charging block from the SCP of intelligent networks and themobile data service platform of data service networks. The CBP provides the charging and ratingfunctions.

UVCIn the OCS system, the UVC system manages recharge cards, including the operations ofgenerating, stocking, releasing, activating, and permanently locking recharge cards. Only therecharge cards in active state can be used. If certain recharge cards are damaged or the passwordsof the recharge cards are disclosed, the recharge cards in active state can be permanently locked.The recharge cards that are permanently locked cannot be used.

GFEPThe GFEP converts protocols and forwards messages when other entities communicate withOCS entities. For example, when the SMSC communicates with the CBP, the GFEP convertsthe SMPP+ message sent by the SMSC to a Diameter message that can be identified by the CBPand sends the message to the CBP for charging.

The GFEP adopts the TCP/IP protocol to communicate with other entities. The SOCKETconnection is built up for communication.

RBIThe RBI is the channel for record transportation between the CBP and billing center, operationsystem, and other systems. The RBI can also function as the channel for file transportationbetween any two OCS entities.

USAUTo meet the requirements for network development, Huawei provides a universal signalingaccess platform for IN products, namely, the USAU.

The USAU is based on the Open Standards Telecom Architecture (OSTA) platform, supportingthe narrowband SS7 signaling protocol and broadband SIGTRAN protocol.

It has higher signaling link processing capability and integration degree than the traditional SAUand provides more powerful signaling access capability for:l MSC/SSP

1 Overview of Business ProcessesHUAWEI OCS



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l HLR

l URP



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2 Call Charging ProcessesAbout This Chapter

2.1 OverviewIn the OCS system, real-time charging for ordinary calls and forwarded calls is adopted. Callsare divided into the following types: calls from calling parties and calls from called parties.

2.2 Process of Charging an Ordinary CallOrdinary calls between subscribers are classified into the following types: ordinary calls betweenOCS subscribers and ordinary calls from OCS subscribers to other network subscribers. Thefollowing sections describe the processes of charging a calling party and a called party for thetwo types of calls, and the process for exception handling.

2.3 Process of Charging a Forwarded CallThe forwarded calls are classified into the calls that are forwarded conditionally and the callsthat are forwarded unconditionally. The following sections describe the charging process of eachtype of forwarded call.

2.4 ReferenceThis section describes the terms used in the call processes.

HUAWEI OCSBusiness Process Description 2 Call Charging Processes


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2.1 OverviewIn the OCS system, real-time charging for ordinary calls and forwarded calls is adopted. Callsare divided into the following types: calls from calling parties and calls from called parties.

In the OCS system, after a voice call is triggered to the SCP through MSC/VLR/SSP, the SCPauthenticates the incoming right and outgoing right of the call. After the call passes theauthentication, the SCP sends a charging request to the CBP, and then the CBP authenticatesand charges for the call, and the SCP controls the call. In this case, the OCS system can control,monitor, and charge for the call in real time.

The common call charging processes include the following types:

l Process of charging for an ordinary call

l Process of charging for a forwarded call

The following sections describe each call charging process in detail.

2.2 Process of Charging an Ordinary CallOrdinary calls between subscribers are classified into the following types: ordinary calls betweenOCS subscribers and ordinary calls from OCS subscribers to other network subscribers. Thefollowing sections describe the processes of charging a calling party and a called party for thetwo types of calls, and the process for exception handling.

2.2.1 Process of Charging a Call Between Two OCS SubscribersThis section describes the process of charging for a call between two OCS subscribers from threeaspects: calling process, called process, and exception handling process.

Process of Charging a Calling PartyFigure 2-1 shows the normal process of charging the calling party in a call between two OCSsubscribers.

2 Call Charging ProcessesHUAWEI OCS



Issue 01 (2010-07-28)

Figure 2-1 Normal process of charging the calling party in a call between two OCS subscribers

IDPRRBE

AC

ACR

CCR{Terminate}

CCA{Terminate}

AC

Continue

CCR{Initial}

CCA{Initial}

Perform authentication and budget

CCR{Update}

CCA{Update}

ACR

Perform rating, debiting and budget

Perform rating and debiting

ERB

RC

Subscriber makes a call

Connect call

Subscriber hangs up

MSC/VLR/SSP

Perform number analysis and basic authentication

SCP CBP

Trigger call according to O-CSI

Repeated

MSC Mobile Switching CenterVLR Visitor Location RegisterSSP Service Switching Point

The process is described as follows:

1. An OCS subscriber makes a call, and the call is forwarded to the MSC/VLR/SSP.

The MSC/VLR/SSP sends an Send Routing Information (SRI) message to the HLR andobtains the Originating CAMEL Subscription Information (O-CSI) from the HLR. Thenthe MSC/VLR/SSP determines the SCP that the subscriber belongs to and the service thatneeds to be triggered according to the GT code and service key in the O-CSI.

2. The MSC/VLR/SSP reports the Initial DP (IDP) message to the SCP to start call control.



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The IDP message contains the information such as the service key, calling number, andcalled number.

3. The SCP delivers a Request Report BCSM Event (RRBE) message to the MSC/VLR/SSPto request the dynamic configuration of the Event Detection Point (EDP).

NOTEThe MSC/VLR/SSP creates a Basic Call State Model (BCSM) for each call. Each call has a seriesof states. A detection point is set between two states, that is, a breakpoint in a call.

4. The SCP performs number analysis and basic authentication.

The purpose of the authentication is to check whether the subscriber is an intra-networksubscriber, whether the subscriber belongs to this SCP, whether the subscriber is in roamingstate, and the call type (normal call or call to a special number).

5. The SCP sends a CCR{Initial} message to the CBP to initiate an authentication request.

The CCR{Initial} message contains all the information required for charging, for example:

l Service-context-id: For example, [email protected].

l request-type: Here, the value is Initial.

l request-action: Here, the request action is fee deduction.

l IN-Information: This service information group of the intelligent network contains theinformation such as the calling number, called number, and charging processing type.

6. The CBP performs preprocessing, authentication, duration precalculation, andprededuction.

7. The CBP sends a CCA{Initial} message to return the authentication result and authorizedduration to the SCP.

The authentication result contains the information about whether the subscriber state isnormal and whether to notify the subscriber of the small balance.

8. The SCP sends a Continue message to prompt the MSC/VLR/SSP to connect the call. Inaddition, the SCP delivers an AC message to monitor the call duration.

If the call passes the authentication, the SCP determines the connection parameters. Forexample, the SCP may need to send an ATI message to the HLR to obtain the location ofthe called party.

9. The MSC/VLR/SSP connects the call and monitors the call duration of the subscriber.

10. When the call duration reaches a segment duration, the MSC/VLR/SSP reports an ACRmessage to the SCP.

11. The SCP sends a CCR{Update} message to the CBP to initiate a fee deduction request.

12. The CBP performs rating, debiting, duration precalculation, and prededuction.

The rating procedure is as follows:

Find the key value of the subscriber according to the charged number, find the product thatthe subscriber subscribes to according to the key value and the corresponding subscriptionrelation, and then perform the price policy rule of the product to perform the rating.

The debiting procedure is as follows:

Invoke the debiting module according to the rating result and process flag (for example,fee deduction) to deduct fees from the account. Then rate the reserved service volume thatis newly applied for and invoke the debiting module again for reservation.

13. The CBP sends a CCA{Update} message to return the processing result and precalculatedduration to the SCP.




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14. The SCP sends an AC message to instruct the MSC/VLR/SSP to continue the call andmonitor the call duration.

15. When the call duration reaches a segment duration, the MSC/VLR/SSP reports an ACRmessage to the SCP.

NOTEThe interactions from step 11 through step 15 can be performed multiple times until either of theparties in the call ends the call or the account balance of the charged party is used up.

16. The subscriber hangs up, and the MSC/VLR/SSP reports an Event Report BCSM (ERB)message to the SCP.

17. The SCP sends a CCR{Terminate} message to the CBP to initiate a charging request andto request the termination of this Diameter message session.

18. The CBP performs rating and debiting.19. The CBP sends a CCA{Terminate} message to return the processing result to the SCP and

prompts the SCP to release the call.20. The SCP sends an RC message to prompt the MSC/VLR/SSP to disconnect the call. The

normal process of charging the calling party in a call between two OCS subscribers iscomplete.

Process of Charging a Called PartyFigure 2-2 shows the normal process of charging the called party in a call between two OCSsubscribers.



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Figure 2-2 Normal process of charging the called party in a call between two OCS subscribers

Initiate route query

Subscriber A makes a call

MSC/VLR/SSPa

Perform route queryReturn T-CSI

Connect call

CCR{Initial}

CCA{Initial}

IDPRRBE

AC

Continue

Request the query of MSRN

Send PRN request

Return result

query MSRN

Return result

Connect call

Trigger call according to T-CSI

HLRb MSC/VLR/SSPb SCPb CBPb

HLR Home Location Register

NOTESubscriber A and subscriber B are OCS subscribers. Subscriber A is the calling party, and subscriber B isthe called party.


1. Subscriber A makes a call to subscriber B. The call reaches MSC/VLR/SSPa.

2. MSC/VLR/SSPa sends an SRI request to HLRb. HLRb returns the Terminated-CAMELSubscription Information (T-CSI) of subscriber B to MSC/VLR/SSPa.

3. MSC/VLR/SSPa triggers the call to SCPb according to the T-CSI.

After the call is triggered to SCPb, the subsequent fee deduction and CAP signalinginteraction are the same as those in the calling process. For detailed process description,see step 2 through step 8 in the process of charging a calling party.

4. SCPb delivers the Continue signaling to MSC/VLR/SSPa.

5. MSC/VLR/SSPa sends an SRI request to HLRb again to request HLRb to return the MobileStation Roaming Number (MSRN) of subscriber B.

6. HLRb sends a Provide Roaming Number (PRN) request to MSC/VLR/SSPb to query theMSRN of subscriber B.




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7. MSC/VLR/SSPb finds the MSRN of subscriber B and returns the MSRN to HLRb.

8. HLRb returns the MSRN to MSC/VLR/SSPa.

9. MSC/VLR/SSPa connects the call to MSC/VLR/SSPb.

10. MSC/VLR/SSPb connects the call to subscriber B. The call is connected. For the subsequentprocess, see step 10 through step 20 in the process of charging a calling party. Then thenormal process of charging the called party in a call between two OCS subscribers iscomplete.

Exception Handling Process

If an exception such as response timeout or network connection error occurs in the CBP, theSCP can determine whether to continue a call according to the related flags. If the SCPdetermines to continue the call, the SCP needs to record an offline CDR. Then the CBP cancharge for the call according to the offline CDR.

2.2.2 Process of Charging a Call Between an OCS Subscriber and aSubscriber of Another Network

This section describes the process of charging for a call between an OCS subscriber and asubscriber of another network from three aspects: calling process, called process, and exceptionhandling process.

Process of Charging a Calling Party

Figure 2-3 shows the normal process of charging the calling party in a call made by an OCSsubscriber to a subscriber of another network.

Figure 2-3 Normal process of charging the calling party in a call made by an OCS subscriberto a subscriber of another network


MSC/VLR/SSPa

Connect call

Trigger call

GMSC External system


1. OCS subscriber A makes a call to a subscriber of another network. The call reaches MSC/VLR/SSPa.

2. MSC/VLR/SSPa determines that the called party is a subscriber of another network. ThenMSC/VLR/SSPa triggers the call to the GMSC.

3. The GMSC performs the subsequent processing and connects the call to the called party.



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NOTEThe process of charging the calling party of a call between an OCS subscriber and a subscriber ofanother network is the same as the process of charging a calling party described in 2.2.1 Process ofCharging a Call Between Two OCS Subscribers. For detailed process description, see the processof charging a calling party described in 2.2.1 Process of Charging a Call Between Two OCSSubscribers.

Process of Charging a Called PartyFor the process of charging the called party in a call made by a subscriber of another networkto an OCS subscriber, see the process of charging a called party in 2.2.1 Process of Charginga Call Between Two OCS Subscribers.

Exception Handling ProcessIf an exception such as response timeout or network connection error occurs in the CBP, theSCP can determine whether to continue a call according to the related flags. If the SCPdetermines to continue the call, the SCP needs to record an offline CDR. Then the CBP cancharge for the call according to the offline CDR.

2.3 Process of Charging a Forwarded CallThe forwarded calls are classified into the calls that are forwarded conditionally and the callsthat are forwarded unconditionally. The following sections describe the charging process of eachtype of forwarded call.

2.3.1 Process of Charging a Call That Is Forwarded UnconditionallyThe Call Forwarding Unconditional (CFU) process is invoked in either of the following cases:

l The call is forwarded unconditionally.

l The called party is unreachable.When the called party is unreachable, the subscriber is in IMSI detached state on the HLR.After the MSC/VLR/SSP sends an SRI message to the HLR for the first time, the HLRreturns the forward-to number.

The following sections describe the process of charging for a call that is forwardedunconditionally in the following scenarios:

l A call made by an OCS subscriber to another OCS subscriber is unconditionally forwardedto a third OCS subscriber.

l A call made by an OCS subscriber to another OCS subscriber is unconditionally forwardedto a non-OCS subscriber.

l A call made by a non-OCS subscriber to an OCS subscriber is unconditionally forwardedto another OCS subscriber.

Charging Process When a Call Made by an OCS Subscriber to Another OCSSubscriber Is Unconditionally Forwarded to a Third OCS Subscriber

Figure 2-4 shows the charging process when a call made by an OCS subscriber to another OCSsubscriber is unconditionally forwarded to a third OCS subscriber. Assume that:




Issue 01 (2010-07-28)

l Subscriber A, subscriber B, and subscriber C are OCS subscribers.

l Subscriber A calls subscriber B, and the call is forwarded to subscriber C unconditionally.

l Subscriber A, subscriber B, and subscriber C belong to the same SCP.

Figure 2-4 Charging process when a call made by an OCS subscriber to another OCS subscriber is unconditionallyforwarded to a third OCS subscriber

IDP


MSC/VLR/SSPa

CCR{Initial}

CCA{Initial}

SRI

RRBE/AC/Continue

SRI ACK(O-CSIbT-CSIbforward information)

Send PRN request

Return resultQuery MSRN

Connect call

Trigger call according to O-CSIa

HLRb MSC/VLR/SSPcHLRcSCPa/b/c CBPa/b/c


Trigger call according to T-CSIb

IDPCCR{Initial}

CCA{Initial}


Trigger call according to O-CSIb

IDPCCR{Initial}

CCA{Initial}


SRISRI ACK(T-CSIc)

Trigger call according to T-CSIc

RRBE/AC/Continue

RRBE/AC/Continue

SRI

SRI ACK(MSRN)

IDPCCR{Initial}

CCA{Initial}


RRBE/AC/Continue



2-9


1. Subscriber A makes a call to subscriber B. The call reaches MSC/VLR/SSPa.

2. MSC/VLR/SSPa triggers the call according to the O-CSI of subscriber A and reports anIDP message to SCPa.

3. SCPa sends a CCR{Initial} message to CBPa to initiate the authentication and budgetrequests.

4. CBPa receives the authentication and budget requests from SCPa, performs authenticationand budget, and then sends a CCA{Initial} message containing the authentication andbudget results to SCPa.

5. If the authentication is passed, SCPa sends the RRBE, AC, and Continue messages toprompt MSC/VLR/SSPa to connect the call.

6. After receiving the Continue message, MSC/VLR/SSPa sends an SRI message to HLRbthrough the MAP protocol.

7. HLRb returns the O-CSI and T-CSI of subscriber B and the forward-to number to MSC/VLR/SSPa.

8. MSC/VLR/SSPa triggers the service according to the T-CSI of subscriber B and reports anIDP message to SCPb.

9. SCPb sends a CCR{Initial} message to CBPb to initiate the authentication and budgetrequests.

10. If the authentication is passed, CBPb sends a CCA{Initial} message to SCPb. Then SCPbdelivers the RRBE, AC, and Continue messages to prompt MSC/VLR/SSPa to connect thecall.

11. After receiving the Continue message, MSC/VLR/SSPa triggers the call forwarding processaccording to the information such as the O-CSI and forward-to number in the SRI message.Then MSC/VLR/SSPa reports an IDP message to SCPb.

12. After receiving the IDP message, SCPb sends a CCR{Initial} message to CBPb to initiatethe authentication and budget requests.

13. If the authentication is passed, CBPb sends a CCA{Initial} message to SCPb. Then SCPbdelivers the RRBE, AC, and Continue messages to prompt MSC/VLR/SSPa to connect thecall.

14. After receiving the Continue message, MSC/VLR/SSPa sends an SRI message to HLRcthrough the MAP protocol to obtain the information about subscriber C, for example, T-CSI.

15. MSC/VLR/SSPa triggers the service according to the T-CSI of subscriber C and reports anIDP message to SCPc.

16. After receiving the IDP message, SCPc sends a CCR{Initial} message to CBPc to initiatethe authentication and budget requests.

17. If the authentication is passed, CBPc sends a CCA{Initial} message to SCPc. Then SCPcdelivers the RRBE, AC, and Continue messages to prompt MSC/VLR/SSPa to connect thecall.

18. MSC/VLR/SSPa sends an SRI message to HLRc.




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19. HLRc sends a PRN request to MSC/VLR/SSPc to obtain the MSRN of subscriber C andreturns the MSRN to MSC/VLR/SSPa for call connection.

20. After receiving the MSRN of subscriber C, MSC/VLR/SSPa connects the call. When thecall ends, the charging process of this call is complete.

NOTEFor the charging process after the call is connected, see 2.2 Process of Charging an OrdinaryCall. MSC/VLR/SSPa sends the charging report and hang-up event to SCPa, SCPb, and SCPc.

Charging Process When a Call Made by an OCS Subscriber to Another OCSSubscriber Is Unconditionally Forwarded to a Non-OCS Subscriber

Figure 2-5 shows the charging process when a call made by an OCS subscriber to another OCSsubscriber is unconditionally forwarded to a non-OCS subscriber. Assume that:

l Subscriber A and subscriber B are OCS subscribers.

l Subscriber C is a non-OCS subscriber.




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Figure 2-5 Charging process when a call made by an OCS subscriber to another OCS subscriber is unconditionallyforwarded to a non-OCS subscriber

IDP


MSC/VLR/SSPa

CCR{Initial}

CCA{Initial}

SRI

RRBE/AC/Continue

SRI ACK(O-CSIbT-CSIbForward information)

Send PRN request

Return result

Query MSRN

Connect call


HLRb MSC/VLR/SSPcHLRcSCPa/b CBPa/b



IDPCCR{Initial}

CCA{Initial}



IDPCCR{Initial}

CCA{Initial}


RRBE/AC/Continue

RRBE/AC/Continue

SRI

SRI ACKMSRN

The charging process when a call made by an OCS subscriber to another OCS subscriber isunconditionally forwarded to a non-OCS subscriber is similar to the charging process as shownin Charging Process When a Call Made by an OCS Subscriber to Another OCS SubscriberIs Unconditionally Forwarded to a Third OCS Subscriber. The only difference is that thecall is not triggered according to the T-CSI of subscriber C because the call is forwarded to anon-OCS subscriber. The call is connected only after the MSRN of subscriber C is obtainedthrough an FRN request. For the charging process after the call is connected, see 2.2 Process ofCharging an Ordinary Call.




Issue 01 (2010-07-28)

Charging Process When a Call Made by a Non-OCS Subscriber to an OCSSubscriber Is Unconditionally Forwarded to Another OCS Subscriber

Figure 2-6 shows the charging process when a call made by a non-OCS subscriber to an OCSsubscriber is unconditionally forwarded to another OCS subscriber. Assume that:

l Subscriber A is a non-OCS subscriber.

l Subscriber B and subscriber C are OCS subscribers.


Figure 2-6 Charging process when a call made by a non-OCS subscriber to an OCS subscriber is unconditionallyforwarded to another OCS subscriber


MSC/VLR/SSPa

SRISRI ACK(O-CSIbT-CSIbForward information)

Send PRN request

Return result

Query MSRN

Connect call

HLRb MSC/VLR/SSPcHLRcSCPb/c CBPb/c


IDPCCR{Initial}

CCA{Initial}



IDPCCR{Initial}

CCA{Initial}


SRI

SRI ACK(T-CSIc)


RRBE/AC/Continue

RRBE/AC/Continue

SRI

SRI ACK(MSRN)

IDPCCR{Initial}

CCA{Initial}


RRBE/AC/Continue



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The charging process when a call made by a non-OCS subscriber to an OCS subscriber isunconditionally forwarded to another OCS subscriber is similar to the charging process as shownin Charging Process When a Call Made by an OCS Subscriber to Another OCS SubscriberIs Unconditionally Forwarded to a Third OCS Subscriber. The only difference is that thecall is not triggered according to the O-CSI of subscriber A because the call is made by a non-OCS subscriber. MSC/VLR/SSPa sends an SRI message to obtain the information such as O-CSI, T-CSI, and forward-to number of subscriber B and then triggers the call directly. For thecharging process after the call is connected, see 2.2 Process of Charging an Ordinary Call.

2.3.2 Process of Charging a Call That Is Forwarded ConditionallyThe call forwarding conditional (CFC) process is invoked in any of the following cases:

l The call is forwarded on no answer.

l The call is forwarded on busy.

l The called party is unreachable.When the called party is unreachable, the called party is in IMSI attached state on the HLR.

The following sections describe the process of charging for a call that is forwarded on busy fromthe following aspects:

l A call made by an OCS subscriber to another OCS subscriber is conditionally forwardedto a third OCS subscriber.

l A call made by an OCS subscriber to another OCS subscriber is conditionally forwardedto a non-OCS subscriber.

l A call made by a non-OCS subscriber to an OCS subscriber is conditionally forwarded toanother OCS subscriber.

Charging Process When a Call Made by an OCS Subscriber to Another OCSSubscriber Is Conditionally Forwarded to a Third OCS Subscriber

Figure 2-7 shows the charging process when a call made by an OCS subscriber to another OCSsubscriber is conditionally forwarded to a third OCS subscriber. Assume that:

l Subscriber A, subscriber B, and subscriber C are OCS subscribers.

l Subscriber A calls subscriber B, and the call is forwarded to subscriber C conditionally.

l Subscriber A, subscriber B, and subscriber C belong to the same SCP.




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Figure 2-7 Charging process when a call made by an OCS subscriber to another OCS subscriber is conditionallyforwarded to a third OCS subscriber

IDP


MSC/VLR/SSPa

CCR{Initial}

CCA{Initial}

SRI

RRBE/AC/Continue

SRI ACK(T-CSIblocation of subscriber B)

Send PRN request

Return result

Query MSRN

Connect call


HLRb MSC/VLR/SSPb HLRcSCPa/b/c CBPa/b/c



IDPCCR{Initial}

CCA{Initial}



IDPCCR{Initial}

CCA{Initial}


SRISRI ACK(T-CSIc)


RRBE/AC/Connect

RRBE/AC/Connect

IDP

MSC/VLR/SSPc

SRI

SRI ACK(MSRNb)

CCR{Initial}

CCA{Initial}


RRBE/AC/Connect

Send PRN request

Return result

Query MSRN

SRI

SRI ACK(MSRNc)

Connect call


Issue 01 (2010-07-28) Huawei Proprietary and ConfidentialCopyright H

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