## make your edit window wide to easier edit the table

Comparison of modern features of Free Unified Communications clients.

||||||||||||||||||||||||||||<bgcolor="lightgrey">'''Debian Desktop'''||
||                       ||||SIP         ||||XMPP        ||    ||||||||SRTP||
||                       ||DATA||ICE/TURN||DATA||ICE/TURN||ENUM||SDES||DTLS||ZRTP||AVPF||NAPTR||Opus||'''Notes''' ||
||[[DebianPkg:baresip]]  ||DATA|| Y      ||--- || ---    || N  || Y  || Y  || Y  || Y  || Y   || Y  || ||
||Blink                  ||TA- || ICE    ||--- || ---    || N  || Y  || N  || N  || N  || Y   || Y  ||[[DebianBug:593281]]. Chat and file transfer also supported using MSRP protocol. ||
||[[DebianPkg:ekiga]]    ||TAV ||        ||??? ||        ||    ||    ||    ||    ||    ||     ||    || ||
||[[DebianPkg:empathy]]  ||TAV || N      ||TAV || N (a)  || N  ||    || N  || N  || N  || N   || N  ||Gnome Default ||
||[[DebianPkg:Jami]]     ||TAV || Y      ||TAV || Y      || ?  || Y  || Y  || Y (SRTP)||?|| ? || Y  ||End-to-end encryption, distributed, works with or without internet connection, [[https://jami.net/download/|multi-platform]], positions itself as a free Skype replacement. Formerly GNU Ring, SFLphone.||
||Jitsi                  ||TAV || N      ||TAV || Y      || N  || Y  || Y  || Y  || Y  || Y   || Y  ||Most powerful ||
||[[DebianPkg:pidgin]]   ||TAV ||        ||TAV || Y      ||    ||    ||    ||    ||    ||     ||    || ||
||[[DebianPkg:qutecom]]  ||?AV ||        ||??? ||        ||    ||    ||    ||    ||    ||     ||    || ||
||[[DebianPkg:twinkle]]  ||?A- || N      ||--- || ---    || ?  || ?  || ?  || N  || ?  || ?   || N  ||ZRTP disabled in Debian, QT3 disabled in Debian ||
||[[DebianPkg:linphone]] ||TAV || ICE    ||--- || ---    || N  || ?  || Y  || N  || Y  || ?   || Y  ||ZRTP disabled in Debian, Text data is available only for listed contacts via the right-click sub-menu ||
||Yate                   ||TA- || ?      ||TA  || ?      || ?  || ?  || ?  || Y  || ?  || ?   || ?  ||  ||
||||||||||||||||||||||||||||<bgcolor="lightgrey">'''Debian Web'''||
||                       ||||SIP       ||||XMPP          ||    ||||||||SRTP||
||                       ||DATA||ICE/TURN||DATA||ICE/TURN||ENUM||SDES||DTLS||ZRTP||AVPF||NAPTR||Opus||'''Notes''' ||
||JSCommunicator         ||?AV || Y      ||--- || n/a    || ?  || Y  || Y  || N  || Y  || n/a || Y  ||Most features are provided by the browser itself||
||||||||||||||||||||||||||||<bgcolor="lightgrey">'''Mobile Clients'''||
||                       ||||SIP       ||||XMPP          ||    ||||||||SRTP||
||                       ||DATA||ICE/TURN||DATA||ICE/TURN||ENUM||SRTP||DTLS||ZRTP||AVPF||NAPTR||Opus||'''Notes''' ||
||[[DebianPkg:baresip]]  ||DATA|| Y      ||--- || ---    || N  || Y  || Y  || Y  || Y  || Y   || Y  || ||
||CSipSimple             ||TA- ||        ||--- ||        ||    || Y  ||    || Y  ||    ||     || Y  ||Video through a plug-in (experimental) ||
||Jami                   ||TAV || Y      ||TAV || Y      || ?  || Y  || Y  || Y (SRTP)||?|| ? || Y  ||[[https://jami.net/download-jami-android|Android app]] or [[https://jami.net/download-jami-linux|Debian Desktop]] ||
||Lumicall               ||?AV || Y      ||--- || n/a    || Y  || Y  || N  || Y  || N  || Y   || N  || ||

Legend:
 * DATA = Text/Audio/Video
 * XMPP = XMPP Jabber
 * ENUM = ENUM Dialing
 * SDES = SRTP SDES key exchange
 * DTLS = SRTP-DTLS
 * (a) Supports TURN for Google account users, using a non-standard authentication API.  Can't be configured or easily patched to use a standard TURN server such as those free TURN servers distributed by Debian.

 

 * Required for WebRTC
  * ICE (Internet Connectivity Establishment)
  * DTLS-SRTP (Secure media based on X.509 end-to-end)
  * AVPF (more advanced RTP packet format)
 * Not required for WebRTC, but desirable:
  * Opus codec (G.711 is also supported by browsers, but call quality may vary)
  * TURN client support (only required when NAT is an issue and talking to a peer who also lacks TURN support)