Hi guys, I'm having a problem getting our phonesystem setup behind Microsoft TMG. There is another post describing disabling NAT on Asterix - but that doesn't help me... When an incoming call is made - there is no audo and the following is logged in the MS105000 C:18.1: No RTP packets were received:remoteAddr=<ISA LAN Address>:10102,extAddr=0.0.0.0,localAddr=<Isa WAN Address>:9028 I've gone through the TMG SIP configuration wizard with what I beleive are the correct values. help please?!? Many thanks in advance, Tony.