= PJSIP Datasheet =

{{{
#!div style="float: left; width:45%;"

== Operating Systems Supported ==

 * Windows
 * Mac OS X
 * Linux/uClinux
 * Smartphones:
  * Windows !Mobile/Windows CE/Windows Phone
  * Symbian S60 3rd Edition and 5th Edition
  * iPhone OS/iOS (iPhone, iPad, iPod Touch) with iOS 4 background notification support
 * Community supported:
  * OpenBSD
  * FreeBSD
  * Solaris
  * MinGW
  * RTEMS
  * Android

== SIP Capabilities ==

 * Base specs:
  * Core methods: [http://tools.ietf.org/html/rfc3261 RFC 3261]: INVITE, CANCEL, BYE, REGISTER, OPTIONS, INFO
  * Digest authentication ([http://tools.ietf.org/html/rfc2617 RFC 2617])
 * Transports:
  * UDP, TCP, TLS (server or mutual)
  * DNS SRV resolution ([http://tools.ietf.org/html/rfc3263 RFC 3263])
  * IPv6 (UDP only)
  * [wiki:QoS  QoS] (DSCP, WMM)
 * Routing/NAT:
  * rport ([http://tools.ietf.org/html/rfc3581 RFC 3581])
  * Service-Route header ([http://tools.ietf.org/html/rfc3608 RFC 3608])
  * SIP outbound for TCP/TLS ([http://tools.ietf.org/html/rfc5626 RFC 5626])
  * Path header (with SIP outbound) ([http://tools.ietf.org/html/rfc3327 RFC 3327]) 
 * Call:
  * Offer/answer ([http://tools.ietf.org/html/rfc3264 RFC 3264])
  * hold, unhold
  * [wiki:SIP_Redirection redirection]
  * transfer/REFER (attended and unattended):
   * Base ([http://tools.ietf.org/html/rfc3515 RFC 3515])
   * replaces ([http://tools.ietf.org/html/rfc3891 RFC 3891])
   * Referred-by ([http://tools.ietf.org/html/rfc3892 RFC 3892])
  * sipfrag support ([http://tools.ietf.org/html/rfc3420 RFC 3420])
  * norefersub ([http://tools.ietf.org/html/rfc4488 RFC 4488])
  * UPDATE ([http://tools.ietf.org/html/rfc3311 RFC 3311])
  * 100rel/PRACK ([http://tools.ietf.org/html/rfc3262 RFC 3262])
  * tel: URI ([http://tools.ietf.org/html/rfc3966 RFC 3966])
  * Session Timers ([http://tools.ietf.org/html/rfc4028 RFC 4028])
 * SDP:
  * [http://tools.ietf.org/html/rfc2337 RFC 2337] (obsoleted by [http://tools.ietf.org/html/rfc4566 RFC 4566])
  * RTCP attribute ([http://tools.ietf.org/html/rfc3605 RFC 3605])
  * IPv6 support ([http://tools.ietf.org/html/rfc3266 RFC 3266])
 * Multipart ([http://tools.ietf.org/html/rfc2046 RFC 2046], [http://tools.ietf.org/html/rfc5621 RFC 5621])
 * Presence and IM:
  * Event framework (SUBSCRIBE, NOTIFY) ([http://tools.ietf.org/html/rfc3265 RFC 3265])
  * Event publication (PUBLISH) ([http://tools.ietf.org/html/rfc3903 RFC 3903])
  * MESSAGE ([http://tools.ietf.org/html/rfc3428 RFC 3428])
  * typing indication ([http://tools.ietf.org/html/rfc3994 RFC 3994])
  * pidf+xml ([http://tools.ietf.org/html/rfc3856 RFC 3856], [http://tools.ietf.org/html/rfc3863 RFC 3863])
  * xpidf+xml
  * RPID (subset) ([http://tools.ietf.org/html/rfc4480 RFC 4480])
 * Other extensions:
  * INFO ([http://tools.ietf.org/html/rfc2976 RFC 2976])
  * AKA, AKA-v2 authentication ([http://tools.ietf.org/html/rfc3310 RFC 3310], [http://tools.ietf.org/html/rfc4169 RFC 4169])
  * ICE option tag ([http://tools.ietf.org/html/rfc5768 RFC 5768])
 * Compliance:
  * Issues with Non-INVITE transaction ([http://tools.ietf.org/html/rfc4320 RFC 4320])
  * Issues with INVITE transaction ([http://tools.ietf.org/html/rfc4321 RFC 4321])
  * Multiple dialog usages ([http://tools.ietf.org/html/rfc5057 RFC 5057])

}}}

{{{
#!div style="float: right; width:45%;"

== NAT Traversal ==

 * STUN:
  * [http://tools.ietf.org/html/rfc5389 RFC 5389]
  * Some [http://tools.ietf.org/html/rfc3489 RFC 3489] compatibility
  * DNS SRV resolution
  * short/long term authentication
  * fingerprinting
 * TURN:
  * [http://tools.ietf.org/html/rfc5766 RFC 5766]
  * DNS SRV resolution
  * UDP and TCP client connection
 * ICE:
  * [http://tools.ietf.org/html/rfc5245 RFC 5245]
  * host, srflx, and relayed candidates
  * aggressive and regular nomination
  * ICE option tag ([http://tools.ietf.org/html/rfc5768 RFC 5768])
 * NAT type detection:
  * legacy [http://tools.ietf.org/html/rfc3489 RFC 3489]
 * Other:
  * [wiki:QoS  QoS] support on sockets (DSCP, WMM)

== Media/audio capabilities ==

 * Core:
  * any clockrates
  * N-channels support
  * zero thread
 * Base:
  * event ([http://tools.ietf.org/html/rfc2833 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, [http://www.polycom.com/company/about_us/technology/siren14_g7221c/license_agreement.html 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 ([http://tools.ietf.org/html/rfc3550 RFC 3550], [http://tools.ietf.org/html/rfc3551 RFC 3551])
  * RTCP XR (subset, [http://tools.ietf.org/html/rfc3611 RFC 3611])
  * UDP, STUN, ICE
  * IPv6 (UDP only)
  * SRTP ([http://tools.ietf.org/html/rfc3711 RFC 3711]) and SRTP SDES ([http://tools.ietf.org/html/rfc4568 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

}}}