= PJSIP Datasheet =

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== Operating Systems Supported ==

 * Windows
 * Mac OS X
 * Linux/uClinux
 * Smartphones:
  * Windows !Mobile/Windows CE
  * Symbian
  * iPhone OS/iOS (iPhone, iPad, iPod Touch) with iOS4 BG support
 * Community supported:
  * OpenBSD
  * FreeBSD
  * Solaris
  * MinGW
  * RTEMS
  * Android

== SIP Capabilities ==

 * Base specs:
  * Core methods: RFC 3261: INVITE, CANCEL, BYE, REGISTER, OPTIONS, INFO
  * Digest authentication (RFC 2617)
 * Transports:
  * UDP, TCP, TLS (server or mutual)
  * DNS SRV resolution (RFC 3263)
  * IPv6 (UDP only)
  * [wiki:QoS  QoS] (DSCP, WMM)
 * Call:
  * Offer/answer (RFC 3264)
  * hold, unhold
  * [wiki:SIP_Redirection redirection]
  * transfer/REFER (attended and unattended):
   * Base (RFC 3515)
   * replaces (RFC 3891)
   * Referred-by (RFC 3892)
  * sipfrag support (RFC 3420)
  * norefersub (RFC 4488)
  * UPDATE (RFC 3311)
  * 100rel/PRACK (RFC 3262)
  * tel: URI (RFC 3966)
  * Session Timers (RFC 4028)
 * SDP:
  * RFC 2337 (obsoleted by RFC 4566)
  * RTCP attribute (RFC 3605)
  * IPv6 support (RFC 3266)
 * Multipart (RFC 2046, 5621)
 * Presence and IM:
  * Event framework (SUBSCRIBE, NOTIFY) (RFC 3265)
  * Event publication (PUBLISH) (RFC 3903)
  * MESSAGE (RFC 3428)
  * typing indication (RFC 3994)
  * pidf+xml (RFC 3856, 3863)
  * xpidf+xml
  * RPID (subset) (RFC 4480)
 * Other extensions:
  * INFO (RFC 2976)
  * rport (RFC 3581)
  * AKA, AKA-v2 authentication (RFC 3310, 4169)
  * Service-Route header (RFC 3608)
  * ICE option tag (RFC 5768)
 * Compliance:
  * Issues with Non-INVITE transaction (RFC 4320)
  * Issues with INVITE transaction (RFC 4321)
  * Multiple dialog usages (RFC 5057)

}}}

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== NAT Traversal ==

 * STUN:
  * RFC 5389
  * Some RFC 3489 compatibility
  * DNS SRV resolution
  * short/long term authentication
  * fingerprinting
 * TURN:
  * RFC 5766
  * DNS SRV resolution
  * UDP and TCP client connection
 * ICE:
  * RFC 5245
  * host, srflx, and relayed candidates
  * aggressive and regular nomination
  * ICE option tag (RFC 5768)
 * NAT type detection:
  * legacy RFC 3489
 * Other:
  * [wiki:QoS  QoS] support on sockets (DSCP, WMM)

== Media/audio capabilities ==

 * Core:
  * any clockrates
  * N-channels support
  * zero thread
 * Base:
  * event (RFC 2833)
  * echo cancellation (Speex, CANEC, suppressor, or native)
  * client conferencing
  * tone generation
  * file playback and recording
  * file playlist
  * adaptive jitter buffer
  * packet lost concealment
  * clock drift recovery
 * Codecs:
  * Bundled:
   * Speex 8KHz, 16Khz, 32KHz
   * iLBC, GSM,
   * L16, G.711A/U (PCMA/PCMU), 
   * G.722,
   * G.722.1 16KHz/32KHz (Siren7/Siren14, licensed from Polycom)
  * with [wiki:Intel_IPP_Codecs Intel IPP] library:
   * AMR-NB, AMR-WB, 
   * G.722, G.722.1,
   * G.723.1, G.726, G.728, G.729A,
  * Hardware codecs:
   * on Nokia with [wiki:Nokia_APS_VAS_Direct APS/VAS-Direct]: AMR-NB, G.729, iLBC, PCMA, PCMU
   * on iPhone: iLBC
 * Transports:
  * RTP and RTCP with media statistic (RFC 3550, 3551)
  * RTCP XR (subset, RFC 3611)
  * UDP, STUN, ICE
  * IPv6 (UDP only)
  * SRTP (RFC 3711) and SRTP SDES (RFC 4568)
  * [wiki:QoS  QoS] (DSCP, WMM)
 * [wiki:Audio_Dev_API Audio devices]:
  * native WMME (Windows, Windows Mobile)
  * native ALSA (Linux)
  * native Symbian MMF (!Symbian/Nokia S60)
  * native [wiki:APS] (Nokia S60) with hardware EC, and [wiki:Nokia_APS_VAS_Direct APS-Direct] to support hardware codecs
  * native [wiki:VAS] (Nokia S60) with hardware EC, and [wiki:Nokia_APS_VAS_Direct VAS-Direct] to support hardware codecs
  * native !CoreAudio (Mac OS X, iPhone) with support for native/hardware EC
  * !PortAudio (WMME, !DirectSound, OSS, ALSA, !CoreAudio, etc.)

== Video ==

 * Planned in 2.0

}}}