SIP Trunk information:
Name of SP: IPCOMMS
Dial Plan Locale (Country) North America
Fields to show on the SIP Trunk tab:
Proxy Server (Primary) sipconnect.ipcomms.net
Proxy Server (Backup) N
Registrar Server sipconnect.ipcomms.net
Outbound Proxy Server sipconnect.ipcomms.net
Digest Authentication (username / password) Yes (per your note below)?? YES
Other:
Voice codec: G711ulaw (per your note below)
Fax protocol G711ulaw upspeed
DTMF RFC 2833 with RTP payload type 101
Register all DIDs Y
If register all DIDs, then - all DIDs have same password
DSCP marking Signaling cs3
DSCP marking RTP ef
Attached is a template that you can import into CCA 2.1 or higher. Info on how to upload a template is below:
https://www.myciscocommunity.com/docs/DOC-9168
This was tested by joshua@aurtech.com