Iñaki Baz Castillo writes:
Ok, and how can we be sure that any gateway will insert that IP in "Contact"? I have no experience on this, but couldn't be possible a gateway inserting a domain isntead of him IP?
everything is possible, but those gateways that i have dealt with, insert their ip address in contact header. if your gw does insert its domain name, then you need to start writing another function that can cope with domain names. you also need to add a domain name field to gateway table.
-- juha