ISO/IEC 13869:2003

Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Inter-exchange signalling protocol — Call Transfer supplementary service

ISO/IEC 13869:2003 specifies the signalling protocol for the support of the Call Transfer supplementary service (SS-CT) at the Q reference point between Private Integrated Network services eXchanges (PINXs) connected together within a Private Integrated Services Network (PISN). SS-CT is a supplementary service which enables a User to transform two of that User's calls (at least one of which must be answered) into a new call between the two other users in the two calls. The Q reference point is defined in ISO/IEC 11579-1. Service specifications are produced in three stages and according to the method specified in ETS 300 387. ISO/IEC 13869:2003 contains the stage 3 specification for the Q reference point and satisfies the requirements identified by the stage 1 and stage 2 specifications in ISO/IEC 13865. The signalling protocol for SS-CT operates on top of the signalling protocol for basic circuit switched call control, as specified in ISO/IEC 11572, and uses certain aspects of the generic procedures for the control of supplementary services specified in ISO/IEC 11582. ISO/IEC 13869:2003 also specifies additional signalling protocol requirements for the support of interactions at the Q reference point between Call Transfer and other supplementary services and ANFs. ISO/IEC 13869:2003 is applicable to PINXs which can interconnect to form a PISN.

Technologies de l'information — Télécommunications et échange d'information entre systèmes — Réseau privé à intégration de services — Protocole de signalisation d'interéchange — Service supplémentaire de transfert d'appel

General Information

• Status: Published
• Publication Date: 20-Mar-2003
• ICS: 33.040.35 - Telephone networks
• Technical Committee: ISO/IEC JTC 1/SC 6 - Telecommunications and information exchange between systems
• Drafting Committee: ISO/IEC JTC 1/SC 6 - Telecommunications and information exchange between systems
• Current Stage: 9060 - Close of review
• Start Date: 04-Jun-2029

Relations

• Revises: ISO/IEC 13869:1995/Cor 1:1999 - Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Inter-exchange signalling protocol — Call transfer supplementary service — Technical Corrigendum 1
• Effective Date: 15-Apr-2008
• Revises: ISO/IEC 13869:1995 - Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Inter-exchange signalling protocol — Call transfer supplementary service
• Effective Date: 15-Apr-2008

Standards Content (Sample)

INTERNATIONAL ISO/IEC
STANDARD 13869
Second edition
2003-04-01


Information technology —
Telecommunications and information
exchange between systems — Private
Integrated Services Network —
Inter-exchange signalling protocol —
Call Transfer supplementary service
Technologies de l'information — Télécommunications et échange
d'information entre systèmes — Réseau privé à intégration de
services — Protocole de signalisation d'interéchange — Service
supplémentaire de transfert d'appel


Reference number
ISO/IEC 13869:2003(E)
©
ISO/IEC 2003

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ISO/IEC 13869:2003(E)
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©  ISO/IEC 2003
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ii © ISO/IEC 2003 — All rights reserved

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ISO/IEC 13869:2003(E)
Contents
Foreword v
Introduction vi
1 Scope 1
2 Conformance 1
3 Normative references 1
4 Terms and definitions            2
4.1 External definitions 2
4.2 Other definitions 3
4.2.1 End PINX 3
4.2.2 Primary PINX 3
4.2.3 Redirection number 3
4.2.4 Secondary PINX 3
4.2.5 Transferring PINX 3
5 Acronyms 3
6 Signalling protocol for the support of SS-CT 3
6.1 SS-CT description 3
SS-CT operational requirements
6.2 3
6.2.1 Provision/Withdrawal 3
6.2.2 Requirements on a Transferring PINX 3
6.2.3 Requirements on a Primary PINX 3
6.2.4 Requirements on a Secondary PINX 4
6.2.5 Requirements on a Transit PINX 4
6.3 SS-CT coding requirements 5
6.3.1 Operations 5
Information elements
6.3.2 10
6.3.3 Messages 10
6.4 SS-CT state definitions 10
6.4.1 States at a Transferring PINX 10
6.4.2 States at a Primary PINX 11
6.4.3 States at a Secondary PINX 11
6.5 SS-CT signalling procedures 11
6.5.1 Actions at a Transferring PINX 11
6.5.2 Actions at a Primary PINX 13
6.5.3 Actions at a Secondary PINX 14
6.5.4 Actions at a Transit PINX 16
6.5.5 Subsequent actions at a Primary and a Secondary PINX 16
6.6 SS-CT impact of interworking with public ISDNs 16
6.6.1 Actions at a Gateway PINX 16
6.6.2 Actions at other types of PINX 17
6.7 SS-CT impact of interworking with non-ISDNs 17
6.7.1 Actions at a Gateway PINX 17
© ISO/IEC 2003 – All rights reserved iii

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ISO/IEC 13869:2003(E)
6.7.2 Actions at other types of PINX 17
6.8 Protocol Interactions between SS-CT and other supplementary services and ANFs 18
6.8.1 Calling Name Identification Presentation (SS-CNIP) 18
6.8.2 Connected Name Identification Presentation (SS-CONP) 18
6.8.3 Completion of Calls to Busy Subscribers (SS-CCBS) 18
6.8.4 Completion of Calls on No Reply (SS-CCNR) 18
6.8.5 Call Forwarding Unconditional (SS-CFU) 18
6.8.6 Call Forwarding Busy (SS-CFB) 19
6.8.7 Call Forwarding No Reply (SS-CFNR) 19
6.8.8 Call Deflection (SS-CD) 19
6.8.9 Path Replacement (ANF-PR) 20
6.9 SS-CT Parameter values (Timers) 21
Timer T1
6.9.1 21
6.9.2 Timer T2 21
6.9.3 Timer T3 21
6.9.4 Timer T4 21
Annexes
A - Protocol Implementation Conformance Statement (PICS) proforma 22
Imported ASN.1 definitions
B - 30
C - Examples of message sequences 31
D - Specification and Description Language (SDL) representation of procedures 38
E - Bibliography 47
F - ASN.1 definitions according to ITU-T Recs. X.208 / X.209 48
iv © ISO/IEC 2003 – All rights reserved

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ISO/IEC 13869:2003(E)
Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the
specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the
development of Internatio
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