Sarkar, Uttam wrote:
> Nope. It can send 100 Trying. 
> 180 would have "totag" that would create a dialog. Without getting any
> reponse from client B. You can't create a dialog. 

That is correct answer for a proxy. For a B2BUA almost anything is 
possible. It depends on what the B2BUA is trying to accomplish.

        Paul

> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Sunil
> Kumar Verma
> Sent: Thursday, March 08, 2007 1:52 PM
> To: [email protected]
> Subject: [Sip-implementors] 180 Ringing from Proxy(BBUA)
> 
> 
> 
>  Hi,
> 
>    In case of BBUA, is it possible for proxy to generate 1xx response
> for an INVITE, before receiving any reply from 
>    terminating SIP client.
>     For Ex. SIP client A calling another SIP client B, and before
> receiving any reply from the SIP client B for the initial 
>     INVITE, can proxy generate 180 RINIGING reply?
> 
>  Thanks
>  Sunil verma
> 
> 
> 
> 
> 
> 
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