The problem, i m confronting right now, is that When I make 2 calls simultaneously from 4 phones,it acts like a Conference Call means everyone is listening to everyone, For Example if cell A calls cell B,AND cell C calls cell D,then cell C can hear the conversation between A and B. and similarly vice verse is happening. Here is the extension that i m using to make calls, ------------------------------------------- <extension name="local_call"> <condition field="${python(VBTS_DB_Get name|callerid|${destination_number})}" expression="IMSI\d{15}"/> <condition field="${python(VBTS_DB_Get callerid|name|${username})}" expression="\d{7,10}"> <action application="set" data="target=${python(VBTS_DB_Get name|callerid|${destination_number})}"/> <action application="set" data="port=${python(VBTS_DB_Get port|callerid|${destination_number})}"/> <action application="set" data="host=${python(VBTS_DB_Get ipaddr|callerid|${destination_number})}"/> <action application="set" data="effective_caller_id_number=${python(VBTS_DB_Get callerid|name|${username})}"/> <action application="set" data="hangup_after_bridge=true"/><action application="set" data="continue_on_fail=true"/> <action application="bridge" data="sofia/internal/${target}@ ${host}:${port}"/> -------------------------------------------- Does any one has any feedback on this why this is happening. Thanks in Advance