--- Brett Tate <[EMAIL PROTECTED]> wrote:

> > I did try to include the Contact Header 
> > information, but the phone still sends 
> > an Ack to proxy, without sending it to 
> > the address indicated in the 
> > Contact Header of 200 OK.
> 
> If the proxy added a Record-Route entry,
> that would be where the phone would send
> the ACK.  The proxy should then route
> the ACK to the next entry in the ACK's
> Route header.
>

[Ranga] If proxy added a Record-Route entry, the route
set anyway contains proxy address and also the contact
header that was sent in 200 OK. This should route ACK
request to the intended contact eventually. ACK first
reaches proxy and then to the contact address. Please
correct me if I am wrong.

> One additional note, some devices always
> or configurably send subsequent requests
> within a dialog to their outbound proxies
> without requiring the proxy to add a
> record-route entry.  If I recall correctly,
> this is not per standard.  However it is
> potentially better than not sending the ACK
> if device is configured to only communicate
> directly with its outbound proxy.
> 
> 
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