* [sipexer v2.1.0](https://github.com/miconda/sipexer) – Modern, flexible command-line tool for crafting and sending SIP/VoIP requests across UDP, TCP, TLS and WebSocket.

* [Pion SDP v3.0.20](https://github.com/pion/sdp) – Go implementation of the Session Description Protocol (SDP).

* [YETI 1.15.51](https://github.com/yeti-switch/yeti-web) – Admin interface for managing SIP SBC with billing and multiple database support.