Hello everyone: I have a few questions about IAX. As I understand IAX is used for Inter-* communications. 1. How do the asterisk boxes communicate? Is it over IP or some other mechanism (T1 trunk?) 2. If I have a scenario where I'd like to use * as a PBX in a Small to medium enterprise and at the same time use another Asterisk box at a service providers office where it connects to a PSTN and the internet. Would such a setup work with IAX? 3. Is there some documentation about setting up IAX and different deployment scenarios? Thanks for your help. Deepak