I recently put a Nortel i2004 and connected it to my server. I can call any other extension on the network and I can call out, But When I call into the phone server and dial the extension it gives a “That option is not valid” What do I need to put into asterisk so that it will dial the unisim phone? With SIP its simple setting up the extension but the extension for the unistim is set up in the unistim.conf and not in the Extension control.
Any help would be great.