We had some trouble getting FreePBX working with Cbeyond’s SIP product when using Asterisk 1.6+. Inbound calls would only work if anonymous SIP enabled. The following configuration remedied that problem.
This configuration has been tested with FreePBX 188.8.131.52 and Asterisk 184.108.40.206.
Set your ‘Outbound CallerID’ and ‘Maximum Channels’. It is important to note that CBeyond will drop your outbound calls if you attempt to set your Outbound CallerID to a number you don’t own.
Dialed Number Manipulation Rules:
Calls must be dialed as 1+AREA CODE. You can configure this here or as part of your Outbound Routes.
Trunk Name: cbeyond
username=<Your Username (Usually the primary number on the account)>
fromuser=<Your Username (Usually the primary number on the account)>
User Context: cbeyond-in
Register string: <Your Username>:<Your Password>@cbeyond/<Your Username>