Multiple SIP Trunks that Terminate on the same IP Address
I have the situation where I have multiple customers that provide circuits with SIP trunks to the same telephony provider which may provide the same IP address for more than one of those trunks. I'm looking for a solution that scales well as we add customer circuits.
I'm running an Acme Packet 3820 with SCX6.2.0.
My thought is to bring each of these connections in on a different virtual interface. That would give each of these connections its own network interface and realm. All routing would be local policy based on either source realm for inbound or to-address for outbound.
That leads to a couple of questions: