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.
Vision SS7 Signaling Server
For those who prefer box-level vs. board-level solutions for handling SS7 network signaling, NMS offers the Vision Signaling Server. This product, together with the Vision Media Gateway, form a complete, scalable, highly available turnkey solution for VoIP application developers who need to connect their application or service to legacy PSTN networks over SS7. The Vision Signaling server can also be used to provide highly scalable network signaling capabilities to applications developed using NMS’s family of Open Access media processing boards.
Built using NMS’s proven SS7 technology, the Vision Signaling Server allows application developers to connect to SS7 without needing to learn the complex details of SS7. R redundant configurations, a DC power option, plus alerts and alarms, help ensure that the Vision Signaling Server remains up and running.