telephony

• asterisk-sounds/
• asterisk/
• baresip/
• linphone/

• asterisk-g729 G.729a voice codec for Asterisk
• asterisk-openbsd-moh add OpenBSD songs to Asterisk music-on-hold
• astmanproxy proxy for Asterisk Manager Interface
• bcg729 software G729A encoder and decoder library
• coturn coturn STUN/TURN server
• fobbit Creative VoIP Blaster driver/software
• gsutil dump/restore Grandstream device configurations
• iaxclient IAX client library
• iaxmodem a software fax modem that uses an IAX channel
• kamailio mature and flexible open source SIP server
• libosip2 GNU implementation of SIP (RFC3261)
• libzrtp ZRTP library
• p5-Asterisk-AMI interact with Asterisk Manager Interface from perl
• p5-Net-SIP perl framework for SIP
• p5-asterisk collection of perl modules to be used with asterisk
• pjsua multimedia communication library (SIP, RTP, ICE, etc)
• py-phonenumbers port of Google's libphonenumber library
• resiprocate reSIProcate SIP stack
• siproxd proxy/masquerading daemon for the SIP protocol
• sngrep SIP packet capture tool with curses UI
• sofia-sip open source SIP User-Agent library
• spandsp DSP library for telephony
• stuntman STUN server implementing RFCs 5389, 5769, and 5780