Yate - Yet Another Telephony Engine

http://yate.null.ro/pmwiki

Yate is a next-generation telephony engine; while currently focused on Voice over Internet Protocol (VoIP) and PSTN, its power lies in its ability to be easily extended. Voice, video, data and instant messaging can all be unified under Yate's flexible routing engine, maximizing communications efficiency and minimizing infrastructure costs for businesses.

Yate can be used as a:

• VoIP server
• VoIP client
• VoIP to PSTN gateway
• PC2Phone and Phone2PC gateway
• H.323 gatekeeper
• H.323 multiple endpoint server
• SIP session border controller
• SIP router
• SIP registration server
• IAX server and client
• IP Telephony server and client
• Call center server
• IVR engine
• Prepaid and postpaid cards system

The software is written in C++ and it supports scripting in various programming languages (such as those supported by the currently implemented embedded PHP and Python interpreters). Both PHP and Python libraries have been developed and made available in order to ease development of external functionalities for Yate.

Yate is production-ready software.

Yate's license is GPL with an exception for linking with OpenH323 and PWlib (licensed under MPL).