Having some issues with echo on the intercom side. Somehow I need to make the asterisk console ignore audio picked up from intercoms microphone IF it came out of the intercoms speaker....... Hopefully that makes sense. The echo isn't a huge deal and its not heard by people using the intercom to gain entry, just the people trying to allow entry. Its maddening to hear everything you say echoed back a second after you said it, very hard to carry on a conversation.