I'm guessing that you wouldn't need to authenticate inbound calls at all - as 
they are simply being forwarded to a sip URI.

-----Original Message-----
From: [email protected] 
[mailto:[email protected]] On Behalf Of Gerald Drouillard
Sent: Wednesday, January 25, 2012 6:24 AM
To: [email protected]
Subject: Re: [sipx-users] Voip.ms 403 Forbidden Errors after registered for 
several hours
Just yesterday we figured out, you don't have to use registration if you have a 
static IP.  Everyone says you cannot use IP auth with voip.ms because they 
cannot send inbound calls via port 5080.  The answer is to setup you DID's to 
use SIP URI for inbound and use IP auth for
outbound.   Your SIP URI would look like {DID}@pbx1.example.com:5080.
If you don't add the 5080 port then you will not be able to transfer the call.

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