Skip directly to content

pjsip Features and Datasheet

Operating Systems Supported

  • Windows
  • Mac OS X
  • Linux/uClinux
  • Smartphones:
    • iPhone OS/iOS (iPhone, iPad, iPod Touch)
    • Android
    • Windows Mobile/Windows CE/Windows Phone
      • Windows 10/UWP is under development
    • ‚ÄčBlackBerry 10 (BB10)
    • Symbian S60 3rd Edition and 5th Edition
  • Community supported:
    • OpenBSD
    • FreeBSD
    • Solaris
    • MinGW
    • RTEMS
    • Android

SIP Capabilities

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:
  • Other:
    • QoS support on sockets (DSCP, WMM)

Media/audio capabilities

  • Core:
    • any clockrates
    • N-channels support
    • zero thread
  • Base:
    • DTMF ( RFC 2833)
    • echo cancellation (Speex, CANEC, suppressor, or native)
    • client conferencing
    • inband DTMF/tone generation
    • WAV file playback and recording
    • WAV file playlist
    • memory based playback and capture
    • 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 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 APS/VAS-Direct: AMR-NB, G.729, iLBC, PCMA, PCMU
      • on iPhone: iLBC
  • Transports:
  • Audio devices:
    • native WMME (Windows, Windows Mobile)
    • native ALSA (Linux)
    • native Symbian MMF (Symbian/Nokia S60)
    • native APS (Nokia S60) with hardware EC, and APS-Direct to support hardware codecs
    • native VAS (Nokia S60) with hardware EC, and 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 Media

Platforms:

  • Windows
  • Linux
  • Mac
  • iOS
  • Android
  • Codecs:
    • H.263-1998 (ffmpeg),
    • H.264 (ffmpeg+x264, OpenH264)
  • Capture devices:
    • colorbar (all platforms)
    • DirectShow (Windows)
    • Video4Linux2 (Linux)
    • QuickTime (Mac OS X)
    • AVFoundation (iOS)
  • Rendering devices:
    • SDL (Windows, Linux, and Mac OS X)
    • OpenGL ES or UIView (iOS)