[SIPForum-discussion] Route header and 'orig' parameter

[Jonathan Wagner]

The orig and term headers indicate to the AS what features should be applied
(originating or terminating). So the S-CSCF sends the call to the AS that
will apply orginating services and signifies that with 'orig' (i.e. Calling
Line ID, call restrictions, etc.), the call is sent back down to the s-CSCF
that will continue running the originating service triggers, once complete,
the CSCF will begin to run terminating triggers and if necessary send the
call to the AS that will apply terminating services and signify that leg as
'term'.



On 10/19/07, Stephen McVarnock <stephen.mcvarnock at aepona.com> wrote:
>
> Hi folks,
>
> Trying to find details on the use of the 'orig' parameter in the Route
> header
> for IMS (AS -> S-CSCF).
>
> TS 24.229, section 5.7.3 covers it at a high level but I'm looking for
> something
> with more detail on the use of the orig/term parameter.
>
> Thanks in advance,
>         Steve.
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