I have two phones on a network behind NAT. Enabling canreinvite=yes on the Asterisk server allows them to talk to each other very effectively through the local network. Unfortunately, calling any outside destinations yields one-way media issues where the far end can hear me but I can't hear them, probably due to lack of an ALG on the NAT router that understands the SDP negotiation of the RTP ports. I like reinvites in theory--it leads to far more efficient and low-latency interaction with my outside termination providers by saving at least one round trip up and down the coast, which is the result of where the Asterisk server is in relation to the phones and the termination provider. What can I do? I suppose one approach is to hard-pin and forward the RTP ports both phones negotiate to; both phones have that capability. Then I can forward them (DNAT) on the gateway. Anything easier or rather obvious I'm missing? Thanks! -- Alex Balashov Evariste Systems Web : http://www.evaristesys.com/ Tel : +1-678-954-0670 Direct : +1-678-954-0671