Can anyone help me with this.
If I plug my Cisco 7940 into a network with a no-name router, calls can be made and recieved just fine.
If I try the same with a asterisk box, the register command in sip.conf will fail. I don’t have the option of opening 5060 on the no-name router
With a Cisco router, I can resolve this by opening 5060.
So how is the 7940 able to traverse the firwall and not *?
How I think it’s doing it, is by using the proxy setting, and going out via port 5065.
How can I achieve this with *, anyone?
Relevent sections of 7940 config that works
proxy1_address: “voiptalk.org”; Can be dotted IP or FQDN
Proxy Server Port (default - 5060)
Outbound Proxy Support
outbound_proxy: “nat.voiptalk.org” ; restricted to dotted IP or DNS A record only
outbound_proxy_port: 5065 ; default is 5060