OpenSource (GPL) project for SIP on Android.

    * High performances
    * Rewriting/filtering rules for integration with Android
    * SIP SIMPLE for Messaging
    * Record calls
    * Simple configuration
    * Fancy UI inspired from 4.x Holo theme
    * Many codecs (HD codecs, optimized codecs)
    * Supported crypto : TLS for SIP and SRTP/ZRTP for media
    * Themes

    More codecs (as the experimental Opus) and themes are available in plugins !

    About permission required by CSipSimple :

    Please report your bugs to the bug tracker of the project : it helps us to make a better software !!!
    Users make the apps : It's opensource ! This application is distributed under GPLv3 license terms ( You can also try the development version (nightly builds) available on the project website if you experiment problems with this version.

    keywords : SIP, codecs, voip, GPL, dialer, voice over IP, free softphone, sip softphone, sip phone, telephony, softphone software free, voip phone, softphone sip, pbx

    Tags: csip , c sip simple , csip simple , csipsimple , sip simple , sipsimple , cipsimple , csipsimple 設定 , simple sip

    Users review

    from 16.218 reviews



    Users comments for CSipSimple

    A Google user

    by A Google user

    Nov 19, 2017  |  "Poor"

    I was told that, this app will make calls without using your regular phone # but heck, my number flashes whenever I call....

    jeffrey kusardi

    by jeffrey kusardi

    Nov 12, 2017  |  "Awesome"

    Great sip software

    Pure Evil

    by Pure Evil

    Nov 10, 2017  |  "Good"

    Nice app but have problems hanging up on Samsung s8 wont drop call when clicking hangup.

    Robert Nemeth

    by Robert Nemeth

    Nov 08, 2017  |  "Awesome"

    The best there is. I'd like an option for adding custom provider logos though. As two of the three I use aren't listed. Namely neophone (Hungary) and Ventengo (Germany) other than that, I'm very happy with this app. 5*

    Brian Heinz

    by Brian Heinz

    Nov 04, 2017  |  "Awesome"

    Great SIP client. I do VOIP systems engineering and installations for a living, this is a great client that I use both personally on my home lab as well as professionally when I need to set up a SIP endpoint for testing on a client's network. Has pre-configured profiles for lots of SIP carriers, and is super easy to set up on your own system with the basic, advanced, and expert profiles for when you need to do some hardcore tweaks.

    Mark Smith

    by Mark Smith

    Oct 31, 2017  |  "OK"

    Used to be good