INTELLIGENT NETWORK

Kamalasanan

IN - NetworkIN - Network

SSP Service switching pointIP Intelligent peripheralSCP Service control pointSMP Service management pointSCEP Service creation environment point

IN

• PHYSICAL PLANES• SSP (Service Switching Point)• SCP (Service Control Point)• SMP (Service Management Point)• IP 9Intelligent Peripheral)

SSP

• An access point for IN services• SSP identifies the IN call by analysing the

Service Key• Initiates a query to SCP• Resumes to further call processing after

receiving the advice from SCP• SSP to SCP interface is G703 digital trunk• Protocols supported MTP,SCCP,TCAP and INAP

SCP

• Stores data conerning Network, services logic and customers

• Most important database hence fault tolerant• Service programs and data are updated from

SMP• Communicating to SSP and IP

SMP

• Front end of SCP and provides the user interface

• Updates SCP with new data and service logics and collects statistics from it

• Service provider is connected with X25 connection or IP

• Contain the service creation environment of new services

IN

• Provides enhanced services to all SSPs in an IN under the control of SCP

• A centralised service for sharing purpose• The main resources are• 1.IVR• 2.Announcements• 3.Voice mail boxes• 4.Speech Recognition system• 5.Text to speech converters• Interfaces to SSP via ISDN PRI or G703• Protocols supported ISUP,INAP,TCAP,SCCP and MTP

Functional Planes

• NINE functional Planes• CCAF• CCF• SSF• SCF• SDF• SRF• SCEF• SMAF• SMF

FEs

• CCAF –Call control agent function give access to the network

• CCF-Involves the basic switching and trigger function as per the criteria of IN

• SSF-Switch calls based on the advice of SCF• SCF-Contains the service logic components

and advises the SSF for further call handling• SDF-Contains the user related data

FEs

• SRF-Covers all the specilised resources like announcements etc

• SCEF-Specifies ,develops,tests,and deploys the services

• SMAF-provides the interface between service management function and the service manager who may be a operator

• SMF-Enables a service to be deployed and used on IN

PE-FE- PROTOCOLPE FE

SSP CCF,SSF,CCAF

SCP SCF,SDF

SMP SCEF,SMF,SMAF

IP SRF

FE-FE PE-PE Protocol

SSF-SCF SSP-SCP INAP,TCAP,SCCP and MTP

SCF-SDF SCP-SDP X.25 Propritery

SCF-SRF SCP-IPSCCP-SSP-IP

INAP TCAP,SCCP,MTPISUP,INAP,TCAP,SCCP and MTP

SRF-SSF IP-SSP ISUP and MTP

Distributed FEs

CAMEL

• CAMEL Phase1 Implemented in 1997• CAMEL Phase1 not supporting SRF• Phase 2 implemented in 1998• Supports many INAP Capabilities• Support SRF• Roaming charging is possible• CAMEL Phase 3 support GPRS data

CAMEL Phase 1