Dale Worley wrote:
 
> On Thu, 2008-09-18 at 10:29 -0400, Joly, Robert (CAR:9D30) wrote:
> > The sipXecs NAT Traversal feature is enabled and is configured with 
> > the public IP address of the SBC as its 'public address' as 
> it should.
> 
> I don't see why NAT Traversal is enabled.  

[copied from my last post on the subject]: "Important note:
Some people may wonder why one would use sipXecs's NAT Traversal feature
if you have a full-blown SBC sitting in your network.  The answer is
that you wouldn't use the feature in such a scenario.  However, if you
are using a basic SBC that is not capable of Remote NAT traversal or a
pseudo-SBC like sipXbridge, you would want to use sipXecs's NAT
Traversal feature to handle remote NAT traversal and in this case would
be subject to the consequences explained above."

> The *purpose* of 
> the SBC is to adjust all the SIP signaling so that sipX sees 
> everything on the far side of the SBC as if it were on the 
> local network.  Hence, if the SBC sends an INVITE to the 
> gateway's address, the SBC will take care of all the 
> signaling work, and sipX can act as if the gateway was on a 
> local network.

...if it knows that an SBC is in the picture.  

You are right and that is exactly what I'm trying to promote in this
e-mail - a mechanism that will let sipX know that an SBC will get
involved for a given call so it can get out of the way.
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