PJSIP Datasheet

SIP capabilities

• Base:
  • INVITE, CANCEL, BYE, REGISTER, OPTIONS, INFO
  • SDP
• Transport:
  • UDP, TCP, TLS
  • DNS SRV resolution (RFC 3263)
  • IPv6 (UDP only)
• Call:
  • hold, unhold
  • transfer/REFER (attended and unattended) (RFC 3515, 3891, 3892)
  • norefersub (RFC 4480)
  • UPDATE (RFC 3311)
  • 100rel/PRACK (RFC 3262)
  • tel: URI (RFC 3966)
  • Session Timer (RFC 4028)
• SDP:
  • RTCP attribute (RFC 3605)
• Presence and IM:
  • SUBSCRIBE, NOTIFY
  • PUBLISH (RFC 3903)
  • MESSAGE (RFC 3428)
  • typing indication (RFC 3994)
  • pidf+xml (RFC 3856, 3863)
  • xpidf+xml
  • RPID (subset) (RFC 4480)
• Other extensions:
  • rport (RFC 3581)
  • AKA, AKA-v2 authentication (RFC 3319, 4169)
  • Service-Route header (RFC 3608)

Media capabilities (audio only)

• Base:
  • RTP, RTCP
  • event (RFC 2833)
  • client conferencing, tone generation, file playback/record, etc.
• Codecs:
  • AMR-NB, AMR-WB, L16, G.711A/U, G.722,
  • G.722.1 16KHz/32KHz (Siren7/Siren14),
  • G.723.1, G.726, G.728, G.729A,
  • iLBC, GSM,
  • Speex 8KHz, 16Khz, 32KHz
  • RTCP XR (RFC 3611)
• Transports:
  • UDP, STUN, ICE
  • IPv6 (UDP only)
  • SRTP (RFC 3711) and SRTP SDES (RFC 4568)

STUN, TURN, ICE

• STUN:
  • latest RFC (RFC 5389)
  • DNS SRV resolution
  • short/long term authentication
  • fingerprint
• TURN:
  • latest draft (RFC-to-be 5766)
  • DNS SRV resolution
  • UDP and TCP client connection
• ICE:
  • latest draft (RFC-to-be 5245)
  • host, srflx, and relayed candidates
  • aggressive nomination