OLD post, but I recently ran across this and found _no_ useful information on SIP trunking online. Symptom was that we could receive calls over a SIP trunk to a Shoretel switch but we could not send calls across the SIP trunk (from an 8.6 CUCM). We ...

Great guide, Scott! A teammate pointed this guide out, thanks a bunch for putting it together. I run PoCs all the time and will definitely use this as a guide and provide feedback.

Susan,You know, I'm working on a similar thing with a customer of ours. Haven't found the solution yet, but I'm having issues federating with gmail.com from a webexconnect xxxx.com domain as well. I just registered a new account at jabber.org (anothe...

(looks like i'm a little late oh well ^_^)You can try using a 'debug vpm signal' to see the state of the each ds0 as you execute a 'csim start xxxxxxxxxxx' to send calls to your cell or something. It's been awhile since I've had to do any CAS trouble...