Here are two softphone supporting g729<br><a href="http://www.flaphone.com/help.php#about">http://www.flaphone.com/help.php#about</a><br><a href="http://trac.qutecom.org/wiki/SupportedCodecs">http://trac.qutecom.org/wiki/SupportedCodecs</a><br>

<br>Also the above softphone  may provide good UI ideas for FSComm<br>