The ISDN User Part (ISUP) portable software product provides basic and supplementary services for the establishment, supervision and release of circuit switched network connections for telecommunications services.
ISUP supports analog and digital circuits as well as data transmission. The ISUP software supports ITU-T, ANSI and many other variants of the protocol. The ISUP software provides the means to:
- Establish, maintain, and release calls and connections.
- Detect and recover from protocol and software errors.
Trillium ISUP enables telecom equipment manufacturers of soft switches, signaling gateways, signal transfer points, service control points, media gateway controllers or other products to:
- Accelerate time to market
- Reduce development costs
- Reduce project risk of internally developed ISUP applications
Product deliverables consist of C source software, documentation, training, warranty and technical support.
- Supports multi-rate connection establishment, circuit maintenance, connection release and abnormal conditions for multi-rate calls. Multi-rate connections are circuit switched connections requiring more than one bearer channel. This feature is part of the ANSI 95, ITU 97 and ETSI v3 specifications.
- Supports working in a decomposed media network. ISUP supports the multiple SAP feature, which enables ISUP to support multiple SAPs (both upper and lower) for the same variant and network type.
- Supports the Distributed Fault-Tolerant/High-Availability (DFT/HA) Core architecture.
- Supports the recovery of lost primitives crossing the upper, lower and layer management interfaces.
- Supports the configurable call validation testing behavior during MTP3 Resume primitive for the ANSI 95 variant.
- Supports enbloc and overlap signalling.
- Supports international and national capabilities.
- Supports link-by-link signaling using the pass-along method and end-to-end signaling using the SCCP method.
- Supports multiple variants including ITU-T 1988, 1992, and 1997, ANSI 1988, 1992, and 1995, ETSI v2, ETSI v3, Italy, Germany (FTZ), Russia, Singapore, NTT (Japan), Telcordia GR-317 and GR-394 and India 2000.
- Each link may be configured to support a variant independent of any other link. For example, one link may support ITU 1988 while another link supports ANSI 1992.
- Supports supplementary services, including user access to calling party address id, user access to called party address id, user-to-user signalling and call forwarding.
- Supports Local Number Portability (LNP) for ANSI and Telcordia.
- Supports multiple Originating Point Codes (OPCs).
- Support message compatibility, parameter compatibility and wrong parameter values procedures.
- Supports circuit management procedures including blocking, unblocking and reset.
- Supports circuit group management procedures including blocking, unblocking, reset and query.
- Supports message segmentation procedures for ITU, ETSI, FTZ and India variants.
- Supports configurable call clearing behavior for MTP3 Pause/Resume priorities.
- Supports passing proprietary parameters transparent between upper and lower layers.
- Supports Fault-Tolerant/High-Availability (FT/HA) for operation in an active/standby environment when used in conjunction with the Protocol Specific Function for ISUP (PSF – ISUP).
- Conforms to Trillium Advanced Portability Architecture (TAPA)
- Benefits of licensing Trillium software from Radisys
May be used with Trillium SCCP, MTP3, MTP3 User Adaptation Layer (M3UA), PSF – ISUP, PSIF – ISUP and Multi-threaded System Services (MTSS) software products.
Trillium ISUP software conforms to the following standards and specifications:
- Common Channel Signalling 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.
- ISDN User Part Specifications for the National Network of Russia (Compliance Statement), 1988.
- ISUP-S ISDN User Part Specification, Telecom of Italy, 1988.
- I.200 – Guidance to the I.200 Series of Recommendations, ITU-T(CCITT).
- I.220 – Common Dynamic Description of Basic Telecommunications Services, ITU-T(CCITT).
- I.221 – Common Specific Characteristics of Services, ITU-T(CCITT).
- I.230 – Definition of Bearer Service Categories, ITU-T(CCITT).
- I.231 – Circuit Mode Bearer Service Categories, ITU-T(CCITT).
- I.232 – Packet Mode Bearer Service Categories, ITU-T(CCITT).
- I.240 – Definition of Teleservices, ITU-T(CCITT).
- I.250 – Definition of Supplementary Services, ITU-T(CCITT).
- I.251 – Number Identification Supplementary Services, ITU-T(CCITT).
- I.320 – ISDN Protocol Reference Model, ITU-T(CCITT).
- NTT Q.761-a – Formats and Codes, 1994.
- NTT Q.762-a – Overview of Functions of Signals and Signals Information, 1997.
- NTT Q.763-a – ISDN User Part (ISUP) Specification Formats and Codes, 1997.
- NTT Q.764-a – ISDN USer Part (ISUP) Specification Signal Protocol, 1995.
- NTT Appendix 4 ISUP Specification.
- NTT Appendix 5 ISUP Specification.
- Q.210 – Principles of Telecommunication Services Supported by an ISDN and the Means to Describe Them, ITU-T(CCITT).
- Q.700 – Introduction to ITU-T(CCITT) Signalling System No. 7, 1993.
- Q.730 – ISDN Supplementary Services, 1993.
- Q.752 – Specifications of Signalling System No. 7 – Signalling System No. 7 Management, ITU-T(CCITT).
- Q.761 – Functional Description of the ISDN User Part of Signalling System No. 7,
- ITU-T(CCITT), 1993, 1997, and 2000.
- Q.762 – General Function of Messages and Signals, ITU-T(CCITT), 1993, 1997, and 2000.
- Q.763 – Formats and Codes, ITU-T(CCITT), 1993, 1997, and 2000.
- Q.763 – Formats and Codes, ITU-T(CCITT), Addendum 1, 2001.
- Q.764 – Signalling Procedures, ITU-T(CCITT), 1993, 1997, and 2000.
- Q.765 – Application Transport Mechanism, ISUP ASE Module, 1998.
- Q.766 – Performance Objectives in the Integrated Services Digital Network Application, ITU-T(CCITT).
- Q.767 – Application of the ISUP of ITU SS7 for International ISDN Interconnections, ITU-T(CCITT), 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 – Signalling System Number 7 – Integrated Services Digital Network (ISDN) User Part, 1988.
- T1.113 – Signalling System Number 7 – Integrated Services Digital Network (ISDN) User Part, 1992.
- 163 TR 75.95 – German Telecom ISUP Specification, Deutsche Telekom FTZ, April 1995.
- NATIONAL CCS7 STANDARDS FOR MTP and ISUP STANDARDS No. S/CCS-02/03, January 2000. Department of Telecommunications, Telecommunication Engineering Centre, Khurshid Lal Bhawan, Janpath, New Delhi-110 001, India.
- CHINA ISUP – Technical Specification for national No. 7 Signalling – Integrated Service Digital Network 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.
- UK ISUP – ND 1007:2006/04 TSG/SPEC/007.
- New Zealand – PTC 331/Appendix 5.
Refer to the ISUP Functional Specification for detailed implementation information.