We have an asterisk 13.7.2 on a public ip (on a datacenter) and a Cisco 7960 behind an adsl router in the office.
The cisco extension is 0104
The INVITE sent by our asterisk (13.7.2) contains 0104@public_ip_of_nat_device
I’ve tried the same thing with another asterisk (I think it was 11) the invite header contains 0104@private_ip _of_cisco_7960 and everything works well
Is there anything I can do on asterisk to make it send the INVITE with the private device ip?