Hello to all, I'm new to this forum. I have to interface an Avaya IP Office 406 v2 (5.0) with 3cx v.9 System. I would like to use wifi to connect different sip clients to 3cx and to interconnect 3cx to avaya to be able to have bidirectional call capabilities. I was thinking to have a sip trunk on the avaya (license required) conected to the 3cx ... is it possible. What should i have to do??? Please help me ... Thank you in advance.