Sip Trunk from Asterisk to IP Office

Occasionally we hear people that want to connect an Asterisk to an IP Office.  The below submission was compliments of

IP Office setup:

1) Create a new SIP Trunk (SIP Licenses are required for this)
2) The only thing you fill in here is the IP address of Asterisks/TrixBox. Please note that this config is done anonymously, so I assume the two machines are either on the same LAN or connected securely via a VPN, I would not recommenced this setup if you are doing this over the internet.

ITSP Domain:
IPSP IP : Asterisks IP
Prim Auth / Pass:
Eveything Else:

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