[Freeswitch-users] FreeTDM DTMF generation not stable.

Hi, I have setup a FS box and added OpenVox A800E cards for FXO ports. The freetdm has been configured properly. But when I tried to dial out from the FXO ports, the call always fail. It seems like the system didn't send out the DTMF properly. Sometimes it's not even generating any DTMF. http://pastebin.com/ZSzyX7id Have anybody experienced this before? Regards, William