Hi there, i dont know if this problem is ongoing for everyone but it has happened to me. I have setup a new 7100 I have all IP phones (SMT-i5243) and they all work fine within the lan. When i take them off site to our other office they connect, i can call another phone, that works, but there is just no audio. I have tried to forward every port i have seen to the OS but still nothing. On the 2.1.5 menu i dont see any option for MPS, nor can i find it anywhere. If anybody can help that would be great
