Subject: RE: [Sipping] Question on Mapping of 180 to ACM (draft-ietf-sippi ng-isup-00)

From: "Peterson, Jon" <[email-masked]>
Date: Wed, 16 Jan 2002 09:37:31 -0600

The distinction drawn in bullet 4 of 7.1.1 is that a gateway should send an
ACM with 'subscriber free' when it receives a 180, and 'no indication' when
it receives a 183. We'll try to clean up the language in 7.2.3 to eliminate
any confusion.

Jon Peterson
NeuStar, Inc.

> -----Original Message-----
> From: Menon, Sunil [mailto:[email-masked]]
> Sent: Tuesday, January 15, 2002 7:40 PM
> To: [email-masked]
> Subject: [Sipping] Question on Mapping of 180 to ACM
> (draft-ietf-sipping-isup-00)
> 
> 
> For an ISUP to SIP call, if a Media Gateway sends an INVITE to the SIP
> device, and receives a 183 response from the SIP device, it 
> needs to map it
> into an ACM. The question I have is : What should it set the 
> Called Party
> Status in the ACM to ? Should it set it to 00 - No 
> Indication, or should it
> set to 01 - Subscriber Free ? 
> Section 7.1.1 of the draft-ietf-sipping-isup-00 draft, 
> indicates that it
> should be set to 00 - No Indication. However section 7.2.3 
> makes it little
> unclear. It seems to indicate that it needs to be set to 01 - 
>  Subscriber
> Free. 
> 
> Appreciate somebody clarifying that. 
> 
> Thanks
> Sunil Menon
> Sonus Networks
> 5 Carlisle Road
> Westford, MA 01886
> 
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