RE: [Sip] Contact header for PSTN 2 IP call

["Rosen, Brian" <Brian.Rosen@marconi.com>]

Usually it is phonenumber@gateway.com
There is some work to update the "tel" URI, which would
probably be used, as in
tel:+17247426826@gateway.marconi.com

Some gateways need to get a "port" number in there,
and you occasionally see:
"7247426826" <port5@gateway.example.com>
although that is more often found in a From or To rather
than a Contact.

Brian

-----Original Message-----
From: Rinchen Tundup [mailto:rinchen@cdotd.ernet.in]
Sent: Monday, December 23, 2002 1:03 PM
To: sip@ietf.org; sip@ietf.com
Subject: [Sip] Contact header for PSTN 2 IP call


  
Hi, 
I have a question ! What will be the contact header in the sip message 
when an PSTN to IP call is made via a media gateway ? Since PSTN phone 
is not a SIP entity and cannot have a SIP URI. 
Should it be sip:phone_no@media_gateway_domain.com? or something else? 
pls help 
  
Rinchen 
  
  
-- 
Rinchen Tundup      

  
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