North American Numbering Council (NANC) Inter-Service Provider LNP Operations Flows

1. North American Numbering Council (NANC)Inter-Service Provider LNP Operations Flows • 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 3.0) • NOTE: Pursuant to FCC Order 07-188, released on November 8, 2007, 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 Main Flows 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. Although 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 for Simple Port definition), Class 2 interconnected VoIP providers must follow the Reseller Flows 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). Although 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 for Simple Port definition), Class 3 interconnected VoIP providers must follow the Reseller Flows for the LNP provisioning process, serving as the New Local Service Provider (NLSP) or Old Local Service Provider (OLSP), whichever is applicable. Version 3.0

2. Main Inter - Service Provider LNP Operations Flows - Main Flow - 1 End User Contact with NLSP 6 2 4 5 10 LSR - FOC 8 End User Are No Are Yes No ( Optional ) NLSP Is NPAC agrees to Service Provider both NNSP NNSP and ONSP requests CSR from processing change to and ONSP Communication the same SP ? OLSP required ? wireless ? NLSP Figure 2 No Yes Yes 11 7 9 3 ICP Perform intra - NNSP coordinates Service Provider NLSP obtains end provider port or all porting user authorization Communication modify existing SV activities . Figure 3 16 13 12 15 Create 14 NPAC logs request Did Was to place the order NNSP and ONSP Yes No Service Provider ONSP place the port request B in conflict , create and process Port Request order in canceled ? service orders including cause conflict ? code Figure 4 No Yes 17 Notify Reseller 18 19 Is the NPAC notifies Yes NNSP coordinates unconditional 10 NNSP and ONSP AA physical changes digit trigger being that port is with ONSP used ? canceled Figure 5 No A BB Z 20 End Figure 1 Version 3.0

3. LSR/FOC Inter - Service Provider LNP Operations Flows - Wireline LSR / FOC Process - LSR - FOC 6 5 9 10 1 3 Is Is OLSP a No end - user Yes No reseller or is a No Is NLSP a NNSPsends LSR/SPSR ONSP sends FOC to Is NLSP a porting all Type 1 wireless reseller ? to ONSP NNSP reseller ? TNs ? number involved ? Yes No Yes Yes 7 2 Notify Reseller 4 8 11 NLSP notes " not all NLSP sends LSR or ( conditional ) ONSP ( conditional ) OLSP NNSP forwards TNs being ported " LSR information to sends LSR , LSR sends FOC or FOC FOC or FOC in the remarks NNSP for resale information , or Loss information to information to field of LSR service Notification to OLSP ONSP NLSP Figure 5 12 Return to Figure 1 Figure 2 Version 3.0

4. ICP Inter - Service Provider LNP Operations Flows - Wireless ICP Process - 17 ICP WPRR is a resolution response 5 6 3 Change code 1 4 Is a 7 owner to Old No Re - start ONSP sends Type 1 Yes Is NLSP a NNSP sends WPR Wireline SP in WPRR rejection to process , return wireless number Reseller ? to ONSP NPAC and NNSP to Figure 1 involved ? possibly LERG , as neccessary Yes No No 2 11 14 16 12 NLSP sends WPR 8 or WPR No No No Is NLSP a Is WPRR a Is WPRR ONSP Sends Is OLSP information to the reseller ? delay ? confirmed ? WPRR to NNSP a reseller ? NNSP for resale service Yes Yes Yes Yes 9 13 18 Return ONSP sends WPR NNSP forwards to Figure 1 or WPR WPRR or WPRR information to information to OLSP NLSP 10 15 OLSP sends No Is OLSP as WPRR or WPRR reseller ? information to ONSP Yes Figure 3 Version 3.0

5. Create Inter - Service Provider LNP Operations Flows - Subscription Version Create Flow - 3 1 2 NPAC notifies NNSP and Is appropriate No ( optionally ) ONSP Create Create service provider notify NPAC with message that Create Create message valid ? message is invalid Yes 4 NPAC starts T 1 timer 10 14 5 NPAC notifies NPAC notifies NNSP and ONSP appropriate Yes T 1 Expired ? that T 1 has service provider expired and then that Create starts T 2 timer message is invalid No No No 12 6 11 13 Is 19 No Received Yes Received No Yes Create Return to T 2 Expired ? Second Second message Figure 1 Create ? Create ? valid ? Yes Yes No 9 17 18 16 15 NPAC notifies 7 Is NPAC notifies Has NPAC notifies Yes appropriate Did No No Create NNSP and ONSP cancel window for NNSP and ONSP service provider NNSP send message that T 2 has pending SVs that port is that Create Create ? valid ? expired expired ? canceled message is invalid Yes Yes 20 NPAC notifies the 8 ONSP that porting Return to proceeds under FIgure 1 the control of the NNSP Figure 4 Version 3.0 Notify Reseller Figure 5

6. Notify Reseller Inter - Service Provider LNP Operations Flows - Reseller Notification - Notify Reseller 1 No Is OLSP a reseller ? Yes 2 4 No No Does Is NLSP a OLSP need reseller ? message ? Yes Yes 5 3 No ONSP Does sends or provides NLSP need information and / message ? or message to OLSP Yes 6 NNSP sends or provides information and / or message to NLSP 7 Return Figure 5 Version 3.0

7. A Inter - Service Provider LNP Operations Flows - Provisioning Without Unconditional 10 - Digit Trigger - 1 3 4 8 9 All service NNSP notifies NPAC downloads NNSP activates providers update NNSP may verify A NPAC to activate ( real time ) to all Z port ( locally ) routing data ( real completion the port service providers time download ) 2 5 NNSP and ONSP NPAC records date make physical and time in history changes ( where file necessary ) 6 ONSP removes translations in central office or switch / HLR 7 NPAC logs failures and non - responses and notifies the NNSP and ONSP Figure 6 Version 3.0

8. AA Inter - Service Provider LNP Operations Flows - Provisioning With Unconditional 10 - Digit Trigger - 1 2 4 5 8 9 10 ONSP activates All service NNSP activates NNSP notifies NPAC downloads ONSP removes unconditional 10 providers update NNSP may verify AA central office NPAC to activate ( real time ) to all appropriate Z digit trigger in the routing data ( real completion the port service providers translations translations central office time download ) 3 6 NNSP and ONSP NPAC records date make physical and time in history changes ( where file necessary ) 7 NPAC logs failures and non - responses and notifies the NNSP and ONSP Figure 7 Version 3.0

9. B Inter - Service Provider LNP Operations Flows - Conflict Flow For The Service Creation Provisioning Process - B 3 Notify Reseller 4 5 7 NNSP contacts 1 NPAC changes the Was Was No Yes 8 ONSP to resolve Was No subscription status conflict resolved Yes port request Is conflict conflict . If no resolution to conflict and within conflict canceled to resolve restricted ? agreement is message from notifies the NNSP expiration conflict ? reached , begin ONSP ? and ONSP window ? normal escalation No Figure 5 No Yes Yes 6 10 2 Notify Reseller 12 NPAC initiates Was Did NNSP send No No NPAC rejects the cancellation and the Conflict resolution message C conflict request notifies NNSP and CauseCode during the restriction ONSP 50 or 51 ? window ? Figure 5 Yes Yes BB Z 11 NPAC rejects the conflict resolution request from NNSP 9 Notify Reseller NPAC notifies both NNSP and ONSP of BB ' conflict off ' via SOA Figure 5 Figure 8 Version 3.0

10. Cancel/C Inter - Service Provider LNP Operations Flows - Cancellation Flow For Provisioning Process - 1 End - user request to cancel 12 11 Did 2 4 the provider No requesting cancel NPAC rejects the Did No C Z NLSP sends cancel send a Create cancel request end - user contact request to NNSP message to NLSP ? NPAC ? Yes Yes 14 15 Notify Reseller Notify Reseller 5 NNSP sends SUPP 13 3 NPAC updates Did to ONSP noting NPAC updates Yes Yes No subscription to cancel - Both NNSP and Is NLSP a cancellation as subscription to cancel , pending , logs status ONSP send Create reseller ? soon as possible logs status change and change and notifies message to and prior to notifies NNSP and ONSP NNSP and ONSP NPAC ? activation No Figure 5 Figure 5 19 6 17 18 7 16 Did NPAC waits for No Did NPAC receive NPAC Notifies either cancel ACK Yes OLSP obtains NNSP sends cancel NNSP send cancel ACK from ONSP that from ONSP or end - user request to NPAC cancel to ONSP within first cancel ACK is expiration of authorization NPAC ? cancel window missing second cancel timer ? window timer No Yes 20 Notify Reseller 9 21 Did 8 NPAC updates NPAC receive Yes Yes subscription to Is OLSP a OLSP sends cancel cancel ACK from cancel , logs cancel reseller ? request ONSP NNSP within first and notifies NNSP cancel window and ONSP timer ? No Figure 5 No Yes 10 23 22 Did Z NPAC receive No NPAC Notifies ONSP sends cancel cancel ACK from NNSP that cancel CC request to NPAC NNSP within second ACK is missing cancel window timer ? Figure 9 Version 3.0

11. Cancel/Conflict/CC Inter - Service Provider LNP Operations Flows - Cancellation Ack Missing from New Provider Provisioning Process - CC No 1 Notify Reseller 10 5 7 2 NPAC updates Did Did Has No No subscription to NPAC receive NPAC rejects the NPAC receive conflict expiration conflict , logs conflict resolve conflict resolve conflict cancel message window and notifies NNSP and message from request from NNSP from NNSP ? expired ? ONSP NNSP ? Figure 5 Yes Yes Yes 6 Notify Reseller 3 8 Has NPAC updates NNSP conflict subscription to No NNSP notifies resolution cancel , logs cancel , NPAC to cancel restriction and notifies NNSP the subscription expired ? and ONSP Yes Figure 5 4 Notify Reseller 9 NPAC updates Notify Reseller subscription to NPAC notifies cancel , logs NNSP and ONSP of Z cancel and ' conflict off ' via notifies NNSP and SOA ONSP Figure 5 Figure 5 BB Figure 10 Version 3.0

12. Disconnect Inter - Service Provider LNP Operations Flows - Disconnect Process For Ported Telephone Numbers - 1 4 9 NPAC broadcasts End - user subscription NNSP initiates initiates deletion to all disconnect disconnect applicable providers 10 Notify Reseller 5 8 2 NPAC notifies Yes No Has NNSP arranges code / block holder effective Is NLSP a intercept of disconnected release date been reseller ? treatment when TN disconnect and reached ? applicable release dates Yes Figure 5 No 3 6 11 NLSP sends NNSP creates NPAC deletes TN disconnect and processes from active request to NNSP service order database 7 NNSP notifies NPAC 12 of disconnect date End and effective release date Figure 11 Version 3.0

13. Audit Inter - Service Provider LNP Operations Flows - Audit Process - 6 1 2 3 4 Notify Reseller 5 NPAC compares NPAC downloads NPAC reports 7 Service provider NPAC issues own subscription updates to LSMSs Yes Are all audits audit completion requests an audit queries to version to LSMS with subscription End completed ? and discrepancies from NPAC appropriate LSMSs subscription version to requestor version differences Figure 5 No Figure 12 Version 3.0

14. NPA-NXX Inter - Service Provider LNP Operations Flows - Code Opening Process - 1 2 3 NPA - NXX holder NPAC sends notice 4 notifies NPAC of NPAC updates its of code opening to NPA - NXX code ( s ) End NPA - NXX database all service being opened for providers porting Figure 13 - First TN Ported in NPA - NXX - 1 3 NPAC successfully First 5 No processes create subscription request for TN End version activity subscription in NPA - NXX ? version Yes 4 2 Notify Reseller NPAC sends NPAC successfully notification of processes create first TN ported to request for all providers via NPA - NXX - X SOA and LSMS Figure 5 Figure 14 Version 3.0

15. Cancel-Undo Inter - Service Provider LNP Operations Flows - Cancel - Undo Process - 5 Notify Reseller 4 1 2 Did the Yes NPAC updates Is the Yes 6 Provider provider requesting subscription to subscription in requests a a cancel - undo issue a status prior to End cancel - pending cancel for this cancel - undo cancel and notifies status ? subscription ? NNSP and ONSP Figure 5 No No 3 NPAC rejects the cancel - undo request Figure 15 Version 3.0