From: [EMAIL PROTECTED]

   My application, which is not really related to either pennytel or voxalot,
   can successfully register with pennytel (it handles the 401 authentication
   reply by providing the valid pennytel credentials), however, because my
   application's server address is different to the contact server address,
   pennytel thinks that my application is a firewall/ATA.  All INVITEs now go
   back to my machine's address for forwarding to the contact, however I
   don't want to have to handle INVITES... I just want to perform the
   REGISTER and get out of the picture and (ideally) get pennytel to send the
   INVITEs directly to [EMAIL PROTECTED]

It sounds like the Registrar is broken.  If the REGISTER is properly
authenticated, it should take the Contact at face value, and not add a
Route to ensure that the request goes to the Contact via the UAC that
submitted the REGISTER.  Hmmm, that's just completely broken.  If the
Contact is behind a NAT, it is responsible for determining its address
as it appears to the Proxy, and using that as its Contact address.

Dale
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