Thanks very much for providing this guide. I've followed it, but not with complete success. My obi110 (firmware 1.3.0 build 2721) works fine as an asterisk trunk but only works partially as an extension. I can call the extension, and it works fine, but I have limited dialing ability from the phone on the obi110 FXS port. From it, I can dial out using the 1xxxxxxxxxx dial plan, but that's all I can do. I can't call another asterisk extension (three digits on my system), or use *codes, or use different trunks that I've set up with an asterisk prefix. Furthermore, when I do dial an outgoing call using 1..., it doesn't show up in my freepbx call log.
I've tried the digitmap suggested here, and the default, but neither allows me to dial another extension. When I try, I get about a 5 second pause, one single ring, another long pause, then a voice message that the number I just dialed is invalid. I'm not sure whether that message comes from the obi, or asterisk, or the trunk.
Any ideas?
Thanks, in advance, for any help.