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Version 4.0
• NOTE: For a more detailed description of each process step within these flows, please refer to the accompanying Inter-Service Provider LNP Operations Flows Narratives (Version 4.0)
• NOTE: Pursuant to FCC Order 07-188, released on November 8, 2007, and FCC Order 09-41, released on May 13, 2009, Local Number Portability (LNP) obligations are extended to interconnected Voice over Internet Protocol (VoIP) providers. The North American Numbering Council (NANC) identifies three classes of interconnected VoIP providers, defined as follows:
Class 1: A standalone interconnected VoIP provider that obtains numbering resources directly from the North American Numbering Plan Administrator (NANPA) and the Pooling Administrator (PA) and connects directly to the PSTN (i.e., not through a PSTN LEC partner’s end office switch). Class 1 standalone interconnected VoIP providers must follow the
appropriate Wireline-Wireline/Intermodal Flows (Simple or Non-Simple, whichever is applicable) for the LNP provisioning process, serving as the New Network Service Provider (NNSP) or Old Network Service Provider (ONSP), whichever is applicable.
Class 2: An interconnected VoIP provider that partners with a facilities-based Public Switched Telephone Network (PSTN) Local Exchange Carrier (LEC) to obtain numbering resources and connectivity to the PSTN via the LEC partner’s end office switch. A Class 2 interconnected VoIP provider is not considered a reseller in the context of the FCC definition of a
Simple Port (refer to FCC Order 07-188 and FCC Order 09-41 for Simple Port definition). Class 2 interconnected VoIP providers must follow the appropriate Wireline-Wireline/Intermodal Flows (Simple or Non-Simple, whichever is applicable) for the LNP provisioning process, serving as the New Local Service Provider (NLSP) or Old Local Service Provider (OLSP), whichever is applicable.
Class 3: A non-facilities-based reseller of interconnected VoIP services that utilizes the numbering resources and facilities of another interconnected VoIP provider (analogous to the “traditional” PSTN reseller). A Class 3 interconnected VoIP
provider is not considered a reseller in the context of the FCC definition of a Simple Port (refer to FCC Order 07-188 and FCC Order 09-41 for Simple Port definition). Class 3 interconnected VoIP providers must follow the appropriate Wireline- Wireline/Intermodal Flows (Simple or Non-Simple, whichever is applicable) for the LNP provisioning process, serving as the New Local Service Provider (NLSP) or Old Local Service Provider (OLSP), whichever is applicable.
North American Numbering Council (NANC)Inter-Service Provider LNP Operations Flows
End UserContact with
NLSP
End UserAgrees tochange to
NLSP
1
2
NLSP obtainsEnd User
authorization
3
Is this aWireless-Wireless
Port?
6
No
8
Proceed toFigure 3Step 1
5
Yes
Is thisa
Simple Port?No
(Optional) NLSPrequests CSR
from OLSP
Yes
Proceed toFigure 2Step 1
97
Inter-Service Provider LNP Operations Flows - Port Type Determination -
Figure 1 Version 4.0
4
Proceed toFigure 4Step 1
Inter-Service Provider LNP Operations Flows-Simple Wireline-Wireline and Intermodal (including Interconnected VoIP)-
-LSR/FOC Process-
Figure 2 Version 4.0
NotifyInterconnected VoIP
Provider
Figure 7
8
Is additional
Non-Simple dataneeded for LSR?
9
NLSP sends LSR orLSR information to
NNSP for interconnection
service
12
Yes
No
2
NNSP sends LSRfor Simple Port
to ONSP
3
Is NLSPa Class 2 or
Class 3 InterconnectedVoIP
Provider?
Yes
(conditional) ONSPsends LSR, LSR
information, or LossNotification to OLSP
No
ONSP returns LSRto NNSP with
request forapplicable
Non-Simple data
5
(conditional) OLSPsends FOC or FOC
information to ONSP
1
Is NLSPa Class 2 or
Class 3 InterconnectedVoIP
Provider?
NNSP forwardsFOC or FOCinformation to
NLSP
6
Yes
No
13
SIMPLELSR-FOC
4
Is OLSPa Class 2 or
Class 3 InterconnectedVoIP
Provider?
Yes
11
ONSP sends FOCconfirming Simple
Port request to NNSP
DD
7
DoesONSP confirm
this as aSimple Port?
No
Yes
ONSP sends FOCwith appropriate
Due Date for Non- Simple Port to NNSP
10
EE
Inter-Service Provider LNP Operations Flows-Non-Simple Wireline-Wireline and Intermodal (including Interconnected VoIP)-
-LSR/FOC Process-
Figure 3 Version 4.0
Notify Reseller orInterconnected VoIP
Provider
Figure 7
6
Is OLSPa Reseller or Class 2 orClass 3 Interconnected
VoIPProvider or is a Type 1
wireless number involved?
9
NON-SIMPLELSR-FOC
NLSP notes “notall TNs beingported” in the
remarks sectionof LSR
10
Yes
No
2
NNSP sends LSR
to ONSP
5
Is NLSPa Reseller or Class 2 orClass 3 Interconnected
VoIPProvider?
No
(conditional) ONSPsends LSR, LSR
information, or LossNotification to OLSP
NoONSP sends
FOCto NNSP
7
(conditional) OLSPsends FOC or FOC
information to ONSP
1
NNSP forwardsFOC or FOCinformation to
NLSP
8
Yes
Yes
11
NLSP sends LSR orLSR information toNNSP for resale or
interconnectionservice
4
Yes
3
Is NLSPa Reseller or Class 2 orClass 3 Interconnected
VoIPProvider?
NoIs
end-userporting all
TNs?
DD EE
Inter-Service Provider LNP Operations Flows-Wireless ICP Process-
Figure 4 Version 4.0
4
Is a Type 1wireless number
involved?
5
ICP
OLSP sends WPRR orWPRR information to
ONSP
No
10
ONSP sends WPRR
to NNSP
16
Yes
ONSP sends WPRR rejectionto NNSP
NNSP forwardsWPRR or WPRR
Information to NLSP
15
Is WPRRconfirmed?
WPRR is a Resolutionresponse
Yes
No
17
Yes
1
Is NLSPa Reseller?
No
2
NLSP sends WPR orWPR information to
NNSP for resale service
ONSP sends WPR orWPR information to
OLSP
9
NNSP sends WPRto ONSP
3
Yes
Is OLSPa Reseller?
No
11 12
Yes
Is NLSPa Reseller?
13
No
14
Yes
Is WPRRa delay?
No
8
Yes
Is OLSPa Reseller?
No
NOTE: No changes were made to this flow.
Inter-Service Provider LNP Operations Flows- Main Flow -
Figure 5 Version 4.0
Notify Reseller/Interconnected VoIP
Provider
NPAC notifiesNNSP and ONSP
that port is canceledFigure 7
11
Wasport requestcanceled?
Is NPACprocessingrequired?
Yes
No
NNSP coordinatesall portingactivities.
Perform intra provider port or
modify existing SV
Yes
6
3
4
No
NNSP and ONSPcreate and process
service orders
2
5
9
DidONSP placethe order in
conflict?
1
AreNNSP andONSP the same SP?
13
NPAC logs requestto place the order
in conflict,including cause
code
AA
Create
Service ProviderPort Request
Figure 6
No
Yes
Yes
7
NNSP coordinatesphysical changes
with ONSP
12
No
10
A BB
Yes
Z
No
Is theUnconditional10 digit trigger
beingused or does ONSP
query onevery call?
B
End
8
NOTE: Changes are
indicated in red.
ICP
NON-SIMPLELSR-FOC
SIMPLELSR-FOC
Inter-Service Provider LNP Operations Flows-Subscription Version Create Flow-
Figure 6 Version 4.0
4
Is Create
messagevalid?
6
Create
NPACstarts T1
timer
NPAC notifiesNNSP and ONSP
that T2 hasexpired
Return to Figure 2Step 13
Yes
1
No
2NNSP and
(optionally) ONSPnotify NPAC withCreate message
3
No
Yes
Is Createmessage
valid?
DidNNSP send
Create?
No
7
Yes
ReceivedsecondCreate?
No
NPAC notifiesappropriate
service providerthat Create
message is invalid
8
Return to Figure 2Step 13
Yes
15
NPAC notifies theONSP that porting
proceeds underthe control of the
NNSP
20
T1expired?
5
Yes
No
HasCancel window
for pendingSVs
expired?
No
No
NPAC notifiesappropriate
service providerthat Create
message is invalid
9
12T2expired?
11
Yes
NPAC notifiesNNSP and ONSP
that T1 hasexpired and thenstarts T2 timer
19No Is
Create messagevalid?
No13
16
YesReceivedsecondCreate?
Yes
Yes
17
NPAC notifiesappropriate
service providerthat Create
Message is invalid
10
Notify Reseller/Interconnected VoIP
Provider
NPAC notifiesNNSP and ONSP
that port is canceledFigure 7
18
14
NOTE: Changes are
indicated in red.
Inter-Service Provider LNP Operations Flows-Reseller/Interconnected VoIP Provider Notification-
Figure 7 Version 4.0
4Is NLSP a
Reseller orClass 2 or 3
InterconnectedVoIP Provider?
NotifyReseller/
InterconnectedVoIP Provider
Yes
3
2
NNSP sends orprovides
information and/ormessage to NLSP
No
Return
Yes
7
DoesNLSP needmessage?
No
Is OLSP a
Reseller orClass 2 or 3
InterconnectedVoIP Provider?
1
Yes
DoesOLSP needmessage?
ONSP sends orprovides
information and/ormessage to OLSP
5
6
No
Yes
No
NOTE: Changes are
indicated in red.
Inter-Service Provider LNP Operations Flows-Provisioning Without Unconditional 10-Digit Trigger-
Figure 8 Version 4.0
NOTE: No changes were
made to this flow.
Z
A
3 4 8 9
2
5
6
7
1
NNSP notifiesNPAC to activate
the port
NNSP activatesport (locally) NPAC downloads
(real time) to all service providers
NPAC records date and time in history
file
ONSP removes translations in
central office or switch/HLR
NPAC logs failures and non-responses
and notifies the NNSP and ONSP
All service providers update routing data (real time download)
NNSP may verify completion
NNSP and ONSPmake physical
changes (wherenecessary)
Inter-Service Provider LNP Operations Flows-Provisioning With Unconditional 10-Digit Trigger-
Figure 9 Version 4.0
NOTE: No changes were
made to this flow.
Z
AA
2 4 5
9
3
6
7
1
NNSP activates central office translations
ONSP activates unconditional 10
digit trigger in the central office
NPAC downloads (real time) to all service providers
NPAC records date and time in history
file
ONSP removesappropriate translations
All service providers update routing data (real time download)
NNSP and ONSPmake physical
changes (wherenecessary)
10
NNSP may verify completion
8
NPAC logs failures and non-responses
and notifies the NNSP and ONSP
NNSP notifiesNPAC to activate
the port
Inter-Service Provider LNP Operations Flows-Conflict Flow For The Service Creation Provisioning Process-
Figure 10 Version 4.0
C
9
Yes
Is conflict
restricted?No
NPAC rejects the conflict request
1
B
Notify Reseller orInterconnected VoIP
Provider
Figure 7
NPAC changes the subscription status
to conflict and notifies the NNSP
and ONSP
210
Notify Reseller orInterconnected VoIP
Provider
Figure 7
NPAC changes the subscription status
to conflict and notifies the NNSP
and ONSP
BB
6Notify Reseller or
Interconnected VoIPProvider
Figure 7
NPAC rejects theconflict resolution
request from NNSP
Z
3
NNSP contactsONSP to resolve
conflict. If noagreement is
reached beginnormal escalation.
4
Wasthe Conflict
Cause Code50 or 51?
No
BB
5Was
ConflictResolved within
ConflictExpiration window?
Yes
7
Did NNSPsend resolution
message during therestrictionwindow?
No
Yes
Yes
No
12
Wasport
request canceledto resolveconflict?
8
Yes
No
NPAC changes the subscription status
to conflict and notifies the NNSP
and ONSP
NoYes
11
Wasresolution
message fromONSP?
NOTE: Changes are
indicated in red.
Inter-Service Provider LNP Operations Flows-Cancellation Flow For Provisioning Process-
Figure 11 Version 4.0
Didend-usercontactNLSP?
End-userrequest to
cancel
8
2
Notify Reseller orInterconnected VoIP
Provider
Figure 7
NPAC updatessubscription to cancel
logs status changeand notifies NNSP
and ONSP
10
18
NNSP sends SUPPto ONSP notingcancellation as
soon as possibleand prior to activation
3
C
DidNPAC receive
cancel ACK fromNNSP within firstcancel window
timer?
No
Yes
No
NPAC notifiesNNSP that cancel
ACK is missing
OLSP sendscancel request
to ONSP
NLSP sendscancel request
to NNSP
ONSP sends cancelrequest to NPAC
NNSP sends cancelrequest to NPAC
5
Didthe provider
requesting cancelsend a Createmessage to
NPAC?
Yes
NPAC notifiesONSP that
cancel ACK ismissing
DidBoth NNSP and
ONSP send CreateMessage to
NPAC?
No
DidNPAC receive
Cancel ACK fromONSP within firstCancel window
timer?
No
DidNPAC receive
cancel ACK fromNNSP within second
cancel windowtimer?
DidNNSP send
cancel toNPAC?
No
OLSP obtainsend-user
authorizationNotify Reseller or
Interconnected VoIPProvider
Figure 7
NPAC changes the subscription status
to conflict and notifies the NNSP
and ONSP
20
NPAC rejects the cancel request
Notify Reseller orInterconnected VoIP
Provider
Figure 7
NPAC updatessubscription to cancelpending logs statuschange and notifiesNNSP and ONSP
22
Z
CC
Z
4
Is OLSP a
Reseller orClass 2 or 3
InterconnectedVoIP Provider?
Yes
No
1
7
Is NLSP a
Reseller orClass 2 or 3
InterconnectedVoIP Provider?
Yes
No
6
9
Yes
23
Yes
16
21
Yes
Yes
Yes
No
15
No 19
13
17
11
14
12
NPAC waitsfor either
cancel ACK orexpiration of
secondcancelwindowtimer
Inter-Service Provider LNP Operations Flows-Cancellation Ack Missing from New Provider Provisioning Process-
Figure 12 Version 4.0
3
DidNPAC receive
Cancel messageFrom NNSP?
NNSP notifiesNPAC to cancelthe Subscription
2
cc
Notify Reseller orInterconnected VoIP
Provider
Figure 7
NPAC notifiesNNSP and ONSPof conflict off via
SOA BB
4
Notify Reseller orInterconnected VoIP
Provider
Figure 7
NPAC rejects theresolve conflict
request from NNSP
Z
1
No
6
Hasconflict
expiration windowexpired?
Yes
HasNNSP conflict
resolutionrestriction expired?
YesYes
No
10
NPAC updatessubscription to
conflict, logs conflictand notifies NNSP
and ONSP
NPAC updatessubscription to
cancel, logs canceland notifies NNSP
and ONSP
Notify Reseller orInterconnected VoIP
Provider
Figure 7
5
No
7
Did NPACreceive resolve
conflict message from NNSP?
NPAC updatessubscription to
cancel, logs canceland notifies NNSP
and ONSP
Notify Reseller orInterconnected VoIP
Provider
Figure 7
Yes
No
8
9
NOTE: Changes are
indicated in red.
Inter-Service Provider LNP Operations Flows-Disconnect Process For Ported Telephone Numbers-
Figure 13 Version 4.0Disconnect
End-userInitiates
disconnect
Haseffective
release datebeen reached?
1
No
4
8
NNSP initiatesdisconnect
No
5
NNSP arrangesintercept
treatment whenapplicable
6
NNSP createsand processesservice order
7
NNSP notifies NPACof disconnect date
and effectiverelease date
9
NPAC broadcastssubscriptiondeletion to all
applicableproviders
Is NLSPa reseller
or Class 2 or 3InterconnectedVoIP Provider?
2
Yes
12
NPAC deletes TNfrom activedatabase
Notify Reseller orInterconnected VoIP
Provider
Figure 7
10
NPAC notifiescode/block holderof disconnected
TN disconnect and release dates
3
NLSP sendsdisconnectrequest to
NNSP
Yes
11
EndNOTE: Changes are
indicated in red.
Inter-Service Provider LNP Operations Flows-Audit Process-
Figure 14 Version 4.0Disconnect
Are allAudits
completed?
3 5
NPAC comparesown subscriptionversion to LSMS
subscription version
No
2
NPAC issuesqueries to
appropriate LSMSsYes
7
Notify Reseller orInterconnected VoIP
Provider
Figure 7
6
NPAC reportsaudit completion
and discrepanciesto requestor
End
4
NPAC downloadsupdates to LSMSswith subscription
versiondifferences
1
Service providerrequests an audit
from NPAC
NOTE: Changes are
indicated in red.
Inter-Service Provider LNP Operations Flows-Code Opening Process-
Figure 15
Version 4.0Disconnect
Firstsubscription
version activityin NPA-NXX?
3
3
NPAC comparesown subscriptionversion to LSMS
subscription version
No
2
NPAC issuesqueries to
appropriate LSMSs
Yes
4
Notify Reseller orInterconnected VoIP
Provider
Figure 7
4
NPAC sendsnotification of
first TN ported toall providers viaSOA and LSMS
End
1
NPAC successfullyprocesses create
request for TNsubscription version
5
End
-First TN Ported in NPA-NXX-
Figure 16
2
NPAC successfullyprocesses create
request forNPA-NXX-X
1
NPA-NXX holdernotifies NPAC of
NPA-NXX code(s)being opened for
porting
NOTE: Changes are
indicated in red.
Inter-Service Provider LNP Operations Flows-Cancel-Undo Process-
Version 4.0Disconnect
Did theprovider requesting
a cancel-undo issue acancel for thissubscription?
4
No
Yes
6
Notify Reseller orInterconnected VoIP
Provider
Figure 7
3
NPAC updatessubscription to
status prior to canceland notifies
NNSP and ONSP
End
Figure 17
1
NPAC rejects thecancel-undo
request
NOTE: Changes are
indicated in red.
Providerrequests a
cancel-undo
Is thesubscription incancel-pending
status?
2
No
5
Yes