> For the complete documentation index, see [llms.txt](https://prosbcdocs.telcobridges.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://prosbcdocs.telcobridges.com/telecom-references/protocols/isup-specification.md). # ISUP Specification The ISUP protocol layer conforms to the following standards: * Common Channel Signaling System N.7 (National), Singapore Telecom, 1988 * EN 300 356-1 v3.2.2, ISUP Version 3 for the International Interfaces Basic Services, 1998 * ETS 300 356 ISDN User Part (ISUP), Version 2 for the International Interface, 1995 * GR-317 -- CORE, Generic Requirement for Call Control Using ISDNUP. Issue 2, December 1997 * GR-394 -- CORE, Generic Requirement for ICI Using ISDNUP. Issue 2, December 1997. Revision 1, November 1998 * IS 7498 - Open Systems Interconnection - Basic Reference Model, ISO * IS 7498 DAD 1 - Open Systems Interconnection - Basic Reference Model Addendum 1: Connectionless Data Transmission, ISO * I.200 Guidance to the I.200 Series of Recommendations, ITU * I.220 Common Dynamic Description of Basic Telecommunications Services, ITU * I.221 Common Specific Characteristics of Services, ITU * I.230 Definition of Bearer Service Categories, ITU * I.231 Circuit Mode Bearer Service Categories, ITU * I.232 Packet Mode Bearer Service Categories, ITU * I.240 Definition of Teleservices, ITU * I.250 Definition of Supplementary Services, ITU * I.251 Number Identification Supplementary Services, ITU * I.320 ISDN Protocol Reference Model, ITU * Q.210 Principles of Telecommunication Services Supported by an ISDN and the Means to Describe Them, ITU * Q.700 – Introduction to ITU Signaling System No. 7, 1993 * Q.730 - ISDN Supplementary Services, 1993 * Q.752 - Specifications of Signaling System No. 7 - Signaling System No. 7 Management, ITU (Renamed from Q.791 in 1993) * Q.761 - Functional Description of the ISDN User Part of Signaling System No. 7, ITU, 1993 and 1997 * Q.762 - General Function of Messages and Signals, ITU, 1993 and 1997 * Q.763 - Formats and Codes, ITU, 1993 and 1997 * Q.763 - Formats and Codes, ITU, Addendum 1, 1998 * Q.764 - Signaling Procedures, ITU, 1993 and 1997 * Q.765 - Application Transport Mechanism, ISUP ASE Module, 1998 * Q.766 - Performance Objectives in the Integrated Services Digital Network Application, ITU * Q.767 - Application of the ISUP of ITU SS7 for International ISDN Interconnections, ITU, 1991 * SS7 Integrated Services Digital Network User Part, ANSI T1.113.1-1995 * SS7 Integrated Services Digital Network User Part, ANSI T1.113.2-1995 * SS7 Integrated Services Digital Network User Part, ANSI T1.113.3-1995 * SS7 Integrated Services Digital Network User Part, ANSI T1.113.4-1995 * T1.113 - Signaling System Number 7 - Integrated Services Digital Network (ISDN) User Part, 1988 * T1.113 - Signaling System Number 7 - Integrated Services Digital Network (ISDN) User Part, 1992 TelcoBridges' implementation of ISUP supports the following switch variants: * ANSI 88, T1.113 (1988) * ANSI 92, T1.113 (1992) * ANSI 95, T1.113.1 – T1.113.4 (1995) * ITU 92, Q.761 - Q.764 (1993) * ITU 97, Q.761 – Q.764 (1997), Q.763 Addendum 1 (05/1998), Q.765 ISUP ASE module (05/1998) * Q.767, ITU 1991 * Singapore Telecom, Common Channel Signaling System N.7, Singapore Telecom, 1988 * Telcordia 97, GR-317, GR-394 * CHINA ISUP - Technical Specification for national No. 7 Signalling - IntegratedService DigitalNetwork User Part (ISUP) - YDN038.1-1999 * CHINA ISUP - Technical Specification for national No. 7 Signalling – Integrated Service Digital Network User Part (ISUP) (supplementary) – Supplementary Amendment YDN 038-1997 * ETSIv2 - ETS 300 356 (1995) * ETSIv3 - EN 300 356-1 V3.2.2 (1998) * ETSIv4 - EN 300 356-1 (2001–07) * UK ISUP - ND 1007:2006/04 TSG/SPEC/007 * SPIROU 1998 – 002-005 (France ISUP) * Japan NTT * Russia - ISUP-R-2000 * Others - Please contact TelcoBridges \[mailto: technical support] for variants not listed here --- # Agent Instructions This documentation is published with GitBook. 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