I have a trunk set up with a provider, that does NOT support a sip Register.
incoming calls from them can come from one of 4 IP addresses.
is there a way to specify on my trunk what the allowed IP addresses are for that trunk?
right now, I have to use
allow anonymous sip invite, and I would much rather set the source IPs on the trunk.
if I do not allow anonymous invite, the invite is Rejected as the IP is not known.