Hi,
How do you configure VoIP through a firewall? The IP addresses are coming from a DHCP server that is located in the inside network, and i am trying to setup the telephony service on the outside router. Is this possible to do?
The main problem at the moment,is that the 2811 router is showing a 'Ambiguous command: "max ephones 1"' error when trying to add the ephones.
Another concern that i'm going to have is allowing the VoIP port through the firewall.
I have attached a screenshot and a packet tracer file.
Any help would be greatly appreciated. Thank you.