Issue 3 LNP Capability Specification: Service Provider Portability November 1997 Contents v GR-2936-CORE Local Number Portability (LNP) Capability Specification: Service Provider Portability Contents Contents Preface ................................................................................................................. Preface–1 1. Introduction............................................................................................................. 1–1 1.1 Purpose and Scope ....................................................................................... 1–1 1.2 Assumptions .................................................................................................. 1–1 1.3 Background/Terminology ............................................................................ 1–3 1.4 Requirements Terminology ......................................................................... 1–4 1.5 Requirement Labeling Conventions ........................................................... 1–4 1.5.1 Numbering of Requirement and Related Objects ........................ 1–4 1.5.2 Requirement, Conditional Requirement, and Objective Object Identification .................................................................................... 1–5 1.6 Major Changes from GR-2936-CORE, Issue 2 ........................................... 1–5 2. User Perspective ..................................................................................................... 2–1 2.1 Users With Ported Numbers ........................................................................ 2–1 2.2 Users Without Ported Numbers .................................................................. 2–1 3. Service Provider Perspective (Network Provider) ............................................. 3–1 4. Switch Feature Requirements ............................................................................... 4–1 4.1 Switch Call Processing Requirements........................................................ 4–1 4.1.1 Non LNP-Capable Originating Switch ........................................... 4–1 4.1.2 LNP-Capable Originating Switch ................................................... 4–2 4.1.3 Intermediate Switch ........................................................................ 4–6 4.1.4 Recipient Switch .............................................................................. 4–8 4.1.5 Donor Switch.................................................................................. 4–11 4.2 AIN Call Processing Requirements (Includes Switch Procedures and TCAP Messages) ......................................................................................... 4–13 4.2.1 Originating End-Office SSP .......................................................... 4–13 4.2.1.1 Detection of LNP Calls ................................................. 4–13 4.2.1.2 Processing an LNP Database Query............................ 4–15 4.2.1.3 LNP Database Response Processing........................... 4–17 4.2.2 Intermediate SSP ........................................................................... 4–20 4.2.2.1 Detection of LNP Calls ................................................. 4–20 4.2.2.2 Processing an LNP Database Query............................ 4–21 4.2.2.3 LNP Database Response Processing........................... 4–21 4.2.3 Donor Switch.................................................................................. 4–21 4.3 QoR Call Processing ................................................................................... 4–22 4.3.1 Changes to Section 4.3, Since Issue 2 ......................................... 4–22 4.3.1.1 Detection of a QoR Call ................................................ 4–22 4.3.1.2 QoR Call Processing at the Initiating Switch ............ 4–22 4.3.2 QoR at the Intermediate Switch................................................... 4–23
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Issue 3 LNP Capability Specification: Service Provider PortabilityNovember 1997 Contents
GR-2936-CORE
Local Number Portability (LNP) Capability Specification: Service Provider Portability
1.5.1 Numbering of Requirement and Related Objects ........................ 1–41.5.2 Requirement, Conditional Requirement, and Objective Object
Identification .................................................................................... 1–51.6 Major Changes from GR-2936-CORE, Issue 2 ...........................................1–5
2. User Perspective ..................................................................................................... 2–12.1 Users With Ported Numbers........................................................................2–12.2 Users Without Ported Numbers .................................................................. 2–1
3. Service Provider Perspective (Network Provider).............................................3–1
4.3.1 Changes to Section 4.3, Since Issue 2 .........................................4–224.3.1.1 Detection of a QoR Call ................................................ 4–224.3.1.2 QoR Call Processing at the Initiating Switch............ 4–22
4.3.2 QoR at the Intermediate Switch................................................... 4–23
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4.3.3 QoR at the Donor Switch.............................................................. 4–234.3.4 QoR Feature Interaction ............................................................... 4–234.3.5 QoR Traffic Measurements...........................................................4–24
4.4 Portability With Rate Center Change ....................................................... 4–244.5 Feature Interactions ................................................................................... 4–24
4.5.1 AIN................................................................................................... 4–244.5.1.1 AIN Feature Interactions at a Tandem Switch .......... 4–264.5.1.2 AIN Feature Interactions at the Recipient Switch .... 4–27
4.5.2 CLASS and ISDN Features............................................................ 4–274.5.2.1 TR-NWT-000031 - Calling Number Delivery............... 4–284.5.2.2 TR-NWT-001188 - Calling Name................................... 4–294.5.2.3 TR-NWT-000215 - Automatic Callback (AC) ..............4–294.5.2.4 TR-NWT-000227 - Automatic Recall (AR) .................. 4–304.5.2.5 TR-NWT-000575 - Calling Identity Delivery on Call
4.7.4 Ported-Out Line Designation........................................................ 4–524.7.4.1 Memory Administration................................................ 4–52
4.7.5 Operational Measurements for LNP............................................ 4–534.8 Maintenance ................................................................................................ 4–544.9 AMA Usage Measurements/ Recording....................................................4–56
4.9.1 Scope of AMA Requirements........................................................ 4–574.9.2 Generation of AMA at the Originating Switch ........................... 4–58
4.9.2.1 Originating Switch Launches an LNP Query..............4–594.9.2.2 Originating Switch Is the Recipient Switch ............... 4–644.9.2.3 Originating Exchange Access ...................................... 4–654.9.2.4 Originating Switch Does Not Query - Additional
Call Scenarios ................................................................ 4–664.9.2.5 Calls From Ported Numbers ........................................ 4–66
4.9.3 Generation of AMA at the Originating Intermediate Switch .... 4–684.9.3.1 Originating Intermediate Switch Launches an LNP
Query...............................................................................4–684.9.3.2 Originating Exchange Access ...................................... 4–714.9.3.3 LRN Is Received in Incoming Signaling...................... 4–724.9.3.4 Originating Intermediate Switch Does Not Query -
Additional Call Scenario ............................................... 4–724.9.4 Generation of AMA at the Donor Switch.................................... 4–72
4.9.4.1 Donor Switch Launches an LNP Query ...................... 4–734.9.4.2 “Last Resort” AMA - Interconnecting Networks........ 4–734.9.4.3 Donor Switch Does Not Query - QoR Routing
Attempt ........................................................................... 4–784.9.5 Generation of AMA at the Recipient Switch .............................. 4–78
4.9.5.1 LRN Is Received in Incoming Signaling...................... 4–784.9.5.2 Called Party Number Received in Signaling at
Recipient Switch............................................................ 4–824.9.6 Generation of AMA at the Terminating Intermediate Switch .. 4–83
4.9.6.1 Terminating Intermediate Switch Launches an LNP Query...............................................................................4–84
4.9.6.2 Terminating Intermediate Switch Does Not Query... 4–85
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4.9.6.3 Terminating Intermediate Switch Receives an LRN.................................................................................. 4–86
4.9.8.1 Population of the LNP Core Module for CNAT AMA................................................................................. 4–96
4.9.9 Miscellaneous AMA Requirements .............................................. 4–974.10 Network Management ................................................................................ 4–98
5. Operator Services System (OSS) Requirements ................................................. 5–15.1 0+ Dialed Alternately Billed Calls and 0- Operator Handled Calls .........5–1
5.1.1 LIDB Queries .................................................................................... 5–15.1.2 OLNS Queries ................................................................................... 5–25.1.3 LNP Query Processing at the OSS on the Called Number.......... 5–35.1.4 LNP Response Processing at the OSS on the CalledPartyID
Parameter ......................................................................................... 5–55.1.5 LNP Processing for 1+ Coin, Hotel/Motel, and Multi-Party
Calls ...................................................................................................5–65.2 Busy Line Verification .................................................................................. 5–75.3 Call Completion for Directory Assistance and Intercept.........................5–85.4 Query on Release at the OSS....................................................................... 5–85.5 OSS Call Processing for LNP with Rate Center Change .......................... 5–85.6 Call Rating and AMA Usage Measurements/Recording ...........................5–9
5.6.1 OSS AMA Recording........................................................................5–95.6.1.1 Generation of the LNP Module ...................................... 5–9
5.6.2 Call Rating for LSPP ......................................................................5–11
6.1.1 Call Origination in a Portability Environment ............................. 6–16.1.2 Call Setup Signaling Prior to LNP Query ...................................... 6–2
6.1.2.1 Signaling to an LNP-Capable Tandem Switch ............. 6–26.1.2.2 Signaling to an Intermediate Network.......................... 6–2
6.1.3 Call Setup Signaling After LNP Query...........................................6–36.1.4 Abnormal Events ............................................................................. 6–46.1.5 QoR Capability .................................................................................6–56.1.6 Formats and Coding ........................................................................6–5
6.1.6.1 Local Service Provider Portability ................................ 6–66.1.6.2 Query on Release.............................................................6–7
6.2 Routing of TCAP Messages.......................................................................... 6–76.2.1 Routing of TCAP Messages in Support of LNP Call Setup .........6–86.2.2 Routing of TCAP Messages to Support Vertical Service
Operation in an LNP Environment .............................................. 6–136.2.2.1 Message Relay Involving 6-Digit GTAs .......................6–20
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6.2.2.2 Availability, Performance, and Capacity Requirements for Message Relay System................... 6–21
7.2.2 Lawful Intercept...............................................................................7–47.2.3 Service Provider Trap and Trace ................................................... 7–4
7.3 Security of Operations Systems (OSs) ....................................................... 7–4
D.1.1 QoR at Initiating Switch................................................................. D–2D.1.1.1 Detection of a QoR Call ................................................. D–2D.1.1.2 QoR Call Processing at the InItiating Switch.............. D–3
D.1.2 QoR at the Intermediate Switch.................................................... D–5D.1.3 QoR at the Donor Switch............................................................... D–6D.1.4 QoR Feature Interaction ................................................................ D–7
D.3 AMA Usage Measurements/Recordings .................................................. D–11D.3.1 Generation of AMA at the Originating Switch .......................... D–11
D.3.1.1 Originating Switch Launches an LNP Query............. D–11D.3.2 Generation of AMA at the Originating Intermediate Switch ... D–11
D.3.2.1 Originating Intermediate Switch Launches an LNP Query.............................................................................. D–11
D.3.3 Generation of AMA at the Donor Switch................................... D–12D.3.3.1 Donor Switch Does Not Query - QoR Routing
Attempt .......................................................................... D–12D.3.4 Generation of AMA at the Terminating Intermediate Switch . D–12
D.4.1 QoR at the OSS.............................................................................. D–15D.4.2 Call Rating and AMA Usage Measurements/Recording ........... D–16
D.4.2.1 Generation of the LNP Module ................................... D–16D.5 Signaling Requirements............................................................................. D–16
D.5.1 QoR Capability .............................................................................. D–16D.5.2 Formats and Coding ..................................................................... D–17
D.5.2.1 Cause Indicators ........................................................... D–17D.5.2.2 Forward Call Indicators............................................... D–17
D.6 Signaling Interface/Interconnection........................................................ D–18D.6.1 Network Interface for Call Setup................................................ D–18
D.6.1.1 Originating Network to Terminating Network or Intermediate Network.................................................. D–18
D.6.1.2 Network Interface, Intermediate Network to Terminating Network................................................... D–19
Requirement-Object Index ...................................................................................... ROI–1
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GR-2936-CORE
List of Figures Figures
Figure 4-1 Test Call Mechanism............................................................................ 4–55Figure 4-2 Query Status Indicators for Successful LNP Queries ...................... 4–89Figure 4-3 Query Status Indicators for Unsuccessful LNP Queries ................. 4–91Figure 6-1 LNP Model - Three Network Configuration...................................... 6–25Figure 6-2 LNP Model - Two Network Configuration ........................................ 6–25Figure A-1 Direct vs. Indirect Interconnection..................................................... A–2Figure A-2 Network Arrangements Involving an Intermediate Carrier
(IXC/2PIC).............................................................................................. A–3Figure A-3 Network Arrangements Involving Delivery of Call to LEC from
Originating Network (CLEC, WSP)..................................................... A–3Figure B-1 Originating LNP Switch - No Rate Center Change ............................ B–2Figure B-1 Originating LNP Switch - No Rate Center Change (Continued)...... B–3Figure B-1 Originating LNP Switch - No Rate Center Change (Continued)...... B–4Figure B-1 Originating LNP Switch - No Rate Center Change (Continued)...... B–5Figure B-2 Operator Services System - No Rate Center Change ........................ B–6Figure B-2 Operator Services System - No Rate Center Change (Continued).. B–7Figure B-2 Operator Services System - No Rate Center Change (Continued).. B–8Figure B-2 Operator Services System - No Rate Center Change (Continued).. B–9Figure B-3 Recipient Switch - No Rate Center Change ..................................... B–10Figure C-1 Call Delivery - Originating Switch Query ........................................... C–2Figure C-2 Call Delivery for Non-Ported Number - Originating Switch
Query....................................................................................................... C–4Figure C-3 Call Delivery/Intra-Switch Ported Number - Originating Switch