I'm trying to setup 7937G phone on CME. I've been trying to find a good doc that explains me how to do this. I was able to find few docs that tells me how to upload firmware and I got that part done. The phone is properly registered. However, I'm not able to call that number from outside. If I dial that number, I am getting a message "calls cannot be completed". I see the call is making to CME router. I can see it with "debug voip ccapi inout" command.