I am new to free switch, and I am pretty amazed by the features and potentials of it. After reading a lot from wiki site and lists, I managed to make the freeswitch rc2 up and running on my centos 5, and had the sip extension 1000 on Bria 2.1and sip extension 1001 on xlite 3.0 registered from my XP PC to the freeswitch on centos, also have four extensions 1004-1007 on Grandstream 4004 and two extensions 1010 and 1011 on PAP2-NA all registered on freeswicth, I was able to hear music on hold by dialing 9999 and joined conference 300x, I could call each other and saw presence of the extensions on Bria 2.1 , and the extensions could answer the ringing. But I coudn't hear the remote calling party after answering each of the call, I only heard the voice mail prompt, when I dialed any number 1 or 2 or 3 or any digit, seemed no DTMF detection and no audio being sent. Could you guys shed some light on this and put me to the right direction? Your guidance is much appreciated. Thanks Chris