PD 6623:1998

0.0.2 Normative information
0.0.3 Contents
0.0.4 History
0.0.5 Issue Control
0.0.6 References
0.0.7 Glossary of terms
0.0.8 Scope
0.1 Introduction to PNO-ISC/SPEC/007
0.2 Index of PNO-ISC/SPEC/007
0.3 Other supplementary services
1 Functional Description (Q.761)
2 General Function of Messages and Signals (Q.762)
    2.1 Exceptions
    2.2 Additions
          2.2.1 UK Specific Signalling Messages
          2.2.2 UK Specific Signalling Parameters
          2.2.3 Specific Parameter Information
3 Formats and Codes (Q.763)
    3.1 Exceptions
    3.2 Additions
          3.2.1 National Forward Call Indicators
          3.2.2 National Forward Call Indicators (Link by
                  link)
          3.2.3 Presentation Number
          3.2.4 Last Diverting Line Identity
          3.2.5 Partial Calling Line Identity
          3.2.6 Called Subscriber's Service Marks Parameter
          3.2.7 Calling Subscriber's Service Marks
                  Parameter
          3.2.8 Calling Subscriber's Originating Facility
                  Marks
          3.2.9 Called Subscriber's Terminating Facility
                  Marks Parameter
          3.2.10 Information Request Indicators Parameter
          3.2.11 Information Indicators Parameter
          3.2.12 UK Parameter Compatibility Information
4 Signalling Procedures (Q.764)
    4.1 Exceptions
    4.2 Additions
          4.2.1 ETSI additions
          4.2.2 UK modifications
5 Supplementary Services, General
    5.1 Introduction
    5.2 Exceptions
6 Spare
7 Connected Line Identification Presentation/Restriction
    (COLP/R)
    7.1 Introduction
    7.2 Exceptions
8 Calling Line Identification Presentation/Restriction
    (CLIP/R)
    8.1 Introduction
    8.2 Exceptions
    8.4 Replacement TABLE 3-1/Q.731
9 Spare
10 Number Portability (NP)
    10.1 Service Overview
    10.2 Information Flows
    10.3 Formats And Codes
          10.3.1 Messages
          10.3.2 Parameters
    10.4 Signalling Procedures
          10.4.1 Actions at the Donor Network
          10.4.2 Actions at the Third Party Network
          10.4.3 Actions at the Recipient Network
          10.4.4 Message Sequence Diagram
11 Completion of Calls to Busy Subscriber (CCBS)
    11.1 Introduction
    11.2 Exceptions
12 Spare
13 Spare
14 Reserved for MCID
15 Call Forwarding Unconditional (CFU)
    15.1 Introduction
    15.2 Service Overview
    15.3 Information Flows
    15.4 Formats and Codes
    15.5 Signalling Procedures
    15.6 Interworking with IUP
16 Call Forwarding No Reply (CFNR)
    16.1 Introduction
    16.2 Service Overview
    16.3 Information Flows
    16.4 Formats and Codes
    16.5 Signalling Procedures
    16.6 Interworking with IUP
17 Call Forwarding Busy (CFB)
    17.1 Introduction
    17.2 Service Overview
    17.3 Information Flows
    17.4 Formats and Codes
    17.5 Signalling Procedures
18 Call Forward on Subscriber Not Reachable (CFNRc)
    18.1 Introduction
    18.2 Formats and Codes
    18.3 Signalling Procedures
          18.3.1 Activation/deactivation/registration
          18.3.2 Invocation and operation
    18.4 Examples of Signalling Procedures
    18.5 Interworking With IUP
19 Explicit Call Transfer (ECT)
    19.1 Introduction
    19.2 Formats and Codes
    19.3 Signalling Procedures
          19.3.1 Loop Prevention Procedure
          19.3.2 Loop Prevention Procedure - Interworking
                  Node Actions

This specification has been produced by the Public Network Operators Interconnect Standards Committee (PNO-ISC) ISUP Working Party. This document specifies the ISUP protocol required for the national interface between public network operators in the UK.