[SIPForum-discussion] SIP T and redirection number in SS7

Rohan Almeida almeida.rohan at gmail.com
Sun Jan 8 04:27:47 UTC 2012


Hi,

if the SIP server you are using understands SIP T and is configured to
use the same call forwarding information should be added in the mime
header using

Content-Type: multipart/mixed; boundary=<unique-boundary>

in the SIP message.

in addition to this the same info will also be mapped to the History
info or Diversion header .


regards,
Rohan Almeida

On 1/3/12, Aniella Juverdeanu <Aniella.Juverdeanu at telus.com> wrote:
> Hi,
>
> I meant to answer quicker... But I didn't have a chance.
> I have been working with SIP T and SIP I for many years and tested a lot.
> For sure the entire IAM is encapsulated and the SIP T node should also map
> to SIP headers the diversion headers. The destination node will give
> priority to the encapsulated message but if not present will consider the
> SIP headers. From my experience on how History
> Header was implemented by diverse vendors is not advisable to be used when
> sending the call to PSTN as it will allays be present in a non forwarded
> call and will add an OCN in IAM that will fail calls to some old IVR
> systems. Best is Diversion (RFC 5806) used also by all IP based messaging
> systems I know.
> Regards,
> Aniella
>
>
> ________________________________
> From: discussion-bounces at sipforum.org <discussion-bounces at sipforum.org>
> To: Raghul Prasanna <raghul82 at yahoo.co.uk>; discussion at sipforum.org
> <discussion at sipforum.org>
> Sent: Sun Dec 25 02:45:47 2011
> Subject: Re: [SIPForum-discussion] SIP T and redirection number in SS7
>
> Hello,
>
> Any response on this please?
>
> Raghul
>
> ________________________________
> From: Raghul Prasanna <raghul82 at yahoo.co.uk>
> To: "discussion at sipforum.org" <discussion at sipforum.org>
> Sent: Monday, 19 December 2011, 11:07
> Subject: [SIPForum-discussion] SIP T and redirection number in SS7
>
> Hello all,
>
> SIP T involves encapsulation of SS7 messages in SIP message.
>
> What would happen if the SS7 IAM had redirection parameter?
>
> Will this be encapsulated as MIME object in the SIP message, or will be
> mapped to either History info or Diversion header of SIP? Please explain.
>
> Thanks,
> Raghul
>
>
>
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