|| '''Features''' || '''Stable''' || '''Development''' ||
|| [http://www.pjsip.org/pjsip/docs/html/index.htm PJSIP] and [http://www.pjsip.org/pjmedia/docs/html/index.htm PJMEDIA] || Y || Y ||
|| [http://www.pjsip.org/pjlib-util/docs/html/group__PJLIB__UTIL__STUN__CLIENT.htm Simple STUN Client]|| Y || Y ||
|| Speex version and date || !r12136 2006/11 || !r12832 2007/04 ||
|| !PortAudio version and date || v19 ~2005 || !r1198 2007/05 ||
|| [http://www.pjsip.org/pjnath/docs/html/index.htm PJNATH] || || Y ||
|| [http://www.pjsip.org/pjnath/docs/html/index.htm#PJNATH_STUN STUN and TURN Library] ||  || Y ||
|| [http://www.pjsip.org/pjnath/docs/html/index.htm#PJNATH_ICE ICE Implementation] ||  || Y ||
|| Windows, Linux, and MacOS Port || Y || Y ||
|| WinCE and Windows Mobile Port   || Y || Y ||
|| [http://www.pjsip.org/sip_symbian.htm Symbian Port] ||  || Y ||
|| RTEMS Port || Y || ./configure-legacy currently broken ||