SS7

Signaling System 7 (SS7), also known as C7, is the carrier signaling protocol used for call control and providing Intelligent Networking (IN) and Advanced IN (AIN) services. SS7 is often used for applications such as IP signaling gateways, wireless infrastructure, and a wide variety of in-network enhanced services, including voice and fax messaging, one-number/follow-me, number portability, and pre-paid services.

SS7 Boards and Software
Open Access SS7 hardware and software platforms provide developers and OEMs with a new level of call control and message redundancy for high availability options in the most demanding in-network applications. Our SS7 solution supports point code redundancy for true telco-grade high-availability applications with full chassis-level redundancy or board-level redundancy within a single chassis.

Our integrated SS7 protocol stack, working in combination with our TX Series hardware, offers switch-specific and high-availability extensions that meet worldwide telecom requirements. Our boards support ISUP, TUP, SCCP, TCAP, and either MTP layers 1, 2, and 3 for TDM connectivity or IP, SCTP, and M3UA (SIGTRAN) for IP network connectivity. These software stacks run on-board, freeing the host computer for applications-related activities. Protocols have been tested against the ETSI, ITU-T, and ANSI standards used in the major telephony markets and enable applications to interoperate with all major CO switches.


Source:www.nmscommunications.com/DevPlatforms/Technologies/SS7/default.htm