On Tue, 2010-04-20 at 14:54 -0400, Mossman, Paul (Paul) wrote:
> Hi all,
> 
> Suppose you have an external SBC that you wish to use for outbound
> calling to an ITSP.  You of course need to create a "SIP Trunk"-type
> Gateway, which will be used by one or more Dial Rules.
> 
> But you first need to create an Unmanaged SBC Route for the external
> SBC, so that you can select it as the "SBC Route" when creating the
> SIP Trunk.  (If you use the "None" SBC Route during creation, you end
> up with a "pure" SIP Trunk, and cannot afterwards choose an SBC Route
> for it.)
> 
> As far as I can tell, the only purpose of an Unmanaged SBC Route is to
> get an (otherwise "pure") SIP Trunk to send INVITEs via a particular
> address (and maybe port), instead of the request-uri's domain.
> 
> That sounds exactly like an Outbound Proxy...
> 
> Could we replace the "Unmanaged" SBC Route with Outbound Proxy and
> Outbound Proxy Port settings on "pure" SIP Trunks? 

I'd prefer that we not call it a proxy, because it almost certainly
isn't a proxy.  If you think it's an improvement, I have no problem with
changing 'Unmanaged' to 'External' or even 'Outbound'.


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