Hi, i have trouble to dial out over my sip-provider gmx. I can register with my provider over port 5060 and also dial out. It rings at the remote phone but when the call is answered there is no sound / voice to hear. This is the part from my sip.conf and extensions.conf: register => 12345:12345@sip-gmx.net [gmx-out] type=peer secret=12345 username=12345 host=sip.gmx.net fromuser=12345 fromdomain=sip.gmx.net disallow=all allow=alaw allow=ulaw allow=g729 exten => _0.,1,Dial(SIP/${EXTEN:1}@gmx-out) Thanks, kib