Signaling and protocol management
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The document discusses signaling transport management in SoftX3000, which provides signaling transmission services. It includes protocols like MTP3, SIGTRAN (SCTP, M2UA, M3UA, IUA and V5UA), SCCP and TCAP that support signaling transport. These protocols provide services like reliable data transport, interworking between TDM SS7 and IP, and additional functions to transfer signaling information. Signaling transport management in SoftX3000 supports configuration, maintenance, and testing functions and provides signaling services to subsystems like ISUP, PRA, V5APP, and TUP.
Signaling and protocol management
- 1. Signaling and protocol management Terms Explanation • Signaling transport management: Signaling transport management system is a common signaling bearer system, which provides the signaling transmission service for SoftX3000. It includes MTP (MTP3), SIGTRAN (SCTP, M2UA, M3UA, IUA and V5UA ), SCCP and TCAP protocols. • MTP3 (Message Transfer Part Level 3): MTP3 is the network layer of SS7 and provides signaling bearer for ISUP, TUP and SCCP in SoftX3000. • SIGTRAN (Signaling Transport): It supports Switched Circuit Network (SCN) signaling protocol delivery from an SS7/ISDN/AN Signaling Gateway (SG) to a Media Gateway Controller (MGC) or IP-resident Database as described in the Framework Architecture for Signaling Transport • SCTP (Stream Control Transport Protocol): It provides real-time, reliable connection-oriented data packet service. In SoftX3000, it provides signaling bearer for M3UA, M2UA, IUA, and V5UA. • M2UA (SS7 MTP2 User Adaptation Layer): It provides primitive communications services for the MTP3 in IP network and the MTP2 on the edge of the network (on MG or SG) to realize the interworking between TDM SS7 and IP. In SoftX3000, the user of M2UA is MTP3. • M3UA (SS7 MTP3 User Adaptation Layer): It provides primitive communications services for MTP3 user in IP network and MTP3 on the edge of the network (on SG) to realize interworking between TDM SS7 and IP. Meanwhile, it also provides end-to-end communications services for two MTP3 users in IP network to realize signaling interworking in IP core network. In SoftX3000, it provides signaling bearer for ISUP, TUP, and SCCP. • IUA (ISDN Q.921 User Adaptation Layer): It provides primitive communications services for the Q.931 in IP network and the Q.921 on the edge of the network (on MG or SG) to realize the interworking between ISDN and IP. In SoftX3000, the user of IUA is Q.931. • V5UA (V5.2 User Adaptation Layer): It provides primitive communications services for the V5.2 in IP network and the LAPV5 on the edge of the network (on MG or SG) to realize the interworking between Access Network (AN) and IP. In SoftX3000, the user of V5UA is V5.2. • SCCP (Signaling Connection Control Part): It provides additional functions to the Message Transfer Part (MTP/MTP3B/M3UA) to cater for both connectionless as well as connection-oriented network services to transfer circuit related and non- circuit related signaling information and other types of information between exchanges and specialized centers in telecommunication networks through Signaling System No. 7 network. • TCAP (Transaction Capabilities Application Part): It refers to a set of communication capabilities that provide an interface between applications and a network layer service. The TCAP is used to provide the means for the transfer of
- 2. information between nodes, and to provide generic services to a large variety of applications distributed over switches and specialized centers in telecommunication networks, while being independent of any of these applications. Function Description In SoftX3000 product, signaling transport management is a common module and it provides signaling transport service for other sub-system, such as ISUP, PRA, V5APP, TUP and INAP. Signaling transport management system include the following protocols: MTP2, MTP3, SCTP, M2UA, M3UA, IUA, V5UA, SCCP and TCAP. It is distributed on two processing cards: Fixed Call Control Unit (FCCU/FCSU) and Broadband Signaling Gateway (BSGI). 1. Data configuration function: It includes the features of adding data, deleting data and modifying data. 2. Maintenance function: It includes the features of activating link, deactivating link, inhibiting link, and uninhibiting link. 3. Test function: It includes the features of querying software version, sending pseudo message and other test functions. Relevant Link IP stack Bearer control protocol RCIP protocol SIP protocol H323 protocol STUN protocol M2UA protocol M3UA protocol V5UA protocol IUA protocol SCTP protocol MTP signaling
- 3. SCCP signaling TCAP signaling INAP signaling V5 signaling DSS1 signaling CAS signaling Forward | Backward| Top