pjsip blog

Tracking development of pjsip, the Open Source SIP, media, and NAT traversal stack/SDK/library for Android, iOS, Windows, Linux, MacOS, RTOS, embedded, and pretty much anything, any device.

Also check PJSIP Documentation site.

Category: pjmedia

  • WebRTC Acoustic Echo Cancellation on PJSIP

    Echo, unless you’re in a karaoke pub, is very annoying. Over the years we have added support for various echo suppression and cancellation algorithm and libraries, like Speex and bdIMAD.…

  • pjsip adds support for OpenCORE AMR-WB AMR-NB codec

    Support for more codecs is an ongoing request for pjsip. Here’s a couple of of new ones from the AMR family: AMR-NB and AMR-WB. It’s not part of any release…

  • Port Your PJSIP Engine to BlackBerry 10 in Less Than 10 minutes

    [This is a guest post from Gurtej Sandhu, developer relations at RIM] If you haven’t already heard, the BlackBerry 10 countdown is on. If you have an existing application using PJSIP…

  • Call for Symbian S60 testers for pjmedia APS direct

    As we finish the current iteration of Symbian S60 implementation, mostimportantly the implementation of APS-direct, we need all of you toparticipate in testing it. This is from experience we know…

  • Analyzing the PJMEDIA Tone Generator Algorithms Performance

    We have just finished some refactoring in the PJMEDIA tone generator, due to some problems identified by ticket 619. The main problem was the bad quality tone generated by the…

  • New low-complexity echo suppressor for mobile devices

    As many have probably experienced it first hand, the echo suppressor (ES) in pjmedia sucks, to put it mildly. And this has made matters worse since ES plays such a…

  • Evaluating PJMEDIA Performance

    Performance is one of the most common questions that developers asked. We’ve been asked questions like, can I run X on platform Y, or how much MIPS required to run…

  • PJSIP 0.9 is Released: Audio Latency, TURN implementation, IPv6, G.722, and More

    Finally, after months of delay, PJSIP version 0.9.0 is released. This has been the longest gap (8 months) between releases, and consequently it has the most modifications in it (there…

  • Doing it in Stereo

    While PJMEDIA have supported stereo audio since day one, it had come with few limitations, for example this capability was not exported in PJSUA-LIB API, and once stereo mode is…

  • Securing VoIP: SRTP Support in PJSIP

    PJSIP now has SRTP support in SVN trunk (hurray!). For more information about compatibility, how to use, and what have been done, please see the SRTP wiki in http://trac.pjsip.org/repos/wiki/SRTP We’ve…

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Here is where we talk about pjsip development in general, and maybe other stuff as well. For the project itself, please go to the main pjsip project website. or pjsip documentation.

PJSIP is backed by Teluu, which provides professional support, additional licensing options, and a network of qualified consultants.