What is OpenSS7?

Description: OpenSS7 Frequently Asked Questions #1.

OpenSS7 is a telephone network and next generation network Signalling System No. 7 (SS7) and Signalling Transport (SIGTRAN) protocol stack which provides source under AGPL-3.0. See what it is not.

OpenSS7 started as an open-source implementation of the Signalling System Number 7 protocol stack as specified by ITU-T, ETSI, ANSI, and other standards bodies. It derives primarily from an implementation of the ITU-T Q.700-Series Recommendations on Signalling System No. 7. For more information on Signalling System Number 7, see ``Where can I find more information on SS7?'' It has since evolved to encompass a wide range of communications protocols and network functions necessary for building advanced signalling and switching systems.

OpenSS7 was developed for the Linux kernel. It currently supports the 2.4, 2.6 and 3.x series kernels. OpenSS7 includes driver implementations for popular Linux WAN cards, and driver implementations are supported separately by the card vendor. For more information on which cards are supported, see ``What hardware is supported?''