what Gerald is expressing is -- if the inbound call is not being
anchored by sipxbridge or an sbc, it will not be able to be
transferred. However, if the registration fails for some reason (I
would check the states on the firewall to see if there is a conflict
somehow) you "could" autofailover the DID from te registered account
to the SIP URI...

On Wed, Jan 25, 2012 at 8:51 AM, Nathaniel Watkins
<[email protected]> wrote:
> 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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