One way audio problem. Im using as voip gateway SAP3102 FXO for PSTN and FXS for internal extension. My 3cx server is behind a linksys router WRT54GL as well as my SAP3102. Im able to inbound/oubound from VOIP to PSTN and viceversa. On my WRT54GL i forwarded RTP ports (10000-20000). On my 3CX, under network (external) i specified 10000 to 20000, under internal 7000 - 7499 I have in another site a Linksys PAP2, this is able to register to my 3CX. When i call from my internal extension E.I. 101 to this external PAP2 E.I. 102, they can hear me, but i cant hear them. My local subnet is 172.16.1.0/28. On the server logs, theres no RTP packets. but i do see im using port 7001, instead of 10000 to 20000. I modified the 3CXphonesystem.ini file adding [Network] LocalSubnets=172.16.1.0/28. But seems it doesnt take it. Does sombody has an idea?