[Freeswitch-users] Open source softphone that can handle g729

We're looking for an open source softphones that can handle g729 that we can extend with extra functionality (connecting to other applications, and things on the intranet.) Does anyone have any they'd suggest? Brian West suggested FSComm with the qualifier "it still needs more work" - has anyone used it much (especially in windows), or know what it's development status is? (Looking in the source browser jmesquita spent a lot of time on it in January, but not much since.) Cheers, Fraser