Below is list of the more popular SIP softphones, all of which are completely free to use.
I occasionally run into folks who are looking to deploy softphones versus traditional, desktop-based IP hard phones….and am often asked what softphone technologies are out there that are compatible with SIP based IP PBX platforms such as Asterisk and Trixbox. This post was originally written by Garrett Smith in 2008, and edited by Ying-Hui (Evy) Chen on Oct.
