Subject: RE: [Sipping] MIME media types for SCCP and TCAP Objects

From: "Drage, Keith (Keith)" <[email-masked]>
Date: Tue, 22 Mar 2005 17:08:50 -0000

The key issue here is whether SIP is just being used as a transport protocol, in which case SCTP with the appropriate SUA or whatever, or whether there is some real usage being made of the SIP transaction in regard to the stated purpose of the SIP protocol, in addition to that transport.

Practically all the applications that have been proposed in the past just seem to come down to the transport requirement, and have therefore not been progressed.

regards

Keith

> -----Original Message-----
> From: [email-masked] [mailto:[email-masked]]On
> Behalf Of Vikram Nair
> Sent: 22 March 2005 06:17
> To: [email-masked]
> Subject: RE: [Sipping] MIME media types for SCCP and TCAP Objects
> 
> 
> Hello,
> 
> There is another point of view here. 
> 
> The very fact of making such information available at one of the SIP
> nodes, opens up limitless opportunities for applications like:
> 
> 1) Offering IN services hosted in PSTN world to SIP subscribers.
> SPIRITS framework currently addresses only few such IN triggers and
> messages but not all.
> 
> 2) Making Presence information available to Presence Gateways (using
> SIP) by transporting MAP mobility management messages
> 
> Most of the time, unavailability/incomplete inter working standards
> for such scenarios holds back some of the ideas.
> 
> Likewise ISUP and QSIG MIME, It would be good idea to consider
> TCAP/SCCP MIMEs as an alternate mechanism for realizing
> services/applications in SIP domain where inter working with SS7 is
> required.
> 
> tx
> - Vikram
> 
> 
> Message: 3
> Date: Mon, 21 Mar 2005 09:17:03 -0500
> From: "Tolga Asveren" <[email-masked]>
> Subject: RE: [Sipping] MIME media types for SCCP and TCAP Objects
> To: <[email-masked]>
> Message-ID: <[email-masked]>
> Content-Type: text/plain; charset="iso-8859-1"
> 
> A comment related with the concept rather than with the draft itself:
> I think, using SIP as transport to carry SCCP/TCAP is not a 
> good idea. IMHO,
> it is abuse of SIP and in addition to that makes the 
> concepts/constructs of
> PSTN domain visible to SIP domain entities.
> 
>  Tolga
> 
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