Hi, I am quite new to the VoIP world and I am currently testing some devices and need some help. What I am trying to do is call between softphones in differnt networks, these two networks involve a router for each network and are seperated by a session border controller. I have no NAT configured and no trunks and simply want to call between the two phones. What I think I need is outbound rules set up, and a 3CX phone system on each network, is this correct? Would be veryyy greatful for any tips or advice, I have been playing around with X-lite two but I like that the PBX and softphone are available from 3cx. Thanks very much in advance, C.