All SIP features supported by PJSIP should be available from PJSUA. Among other things, it supports:
- multiple accounts, with each having different registration settings,
- multiple SIP calls (with or without conferencing),
- SIMPLE/presence with SUBSCRIBE/NOTIFY,
- PUBLISH,
- support for PIDF and X-PIDF
- instant messaging with MESSAGE request,
- call transfer,
- conferencing,
- RFC 2833,
- adaptive jitter buffer,
- AEC, PLC, VAD,
- STUN,
- ICE,
- Speex, iLBC, GSM, G.711, L16 codecs, narrow-band, wideband/16KHz or ultra-wideband/32KHz,
- looping the media (local or remote),
- playing WAV files,
- quality statistics with RTCP
- etc.
Screenshots of pjsua:
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