It is widely (universally) used in 3GPP/IMS.
In there architecture, the UA connects to an edge proxy/b2bua (the
P-CSCF), and this eventually sends the request to the originating user's
home proxy/b2bua (S-CSCF). The registration is handled by the S-CSCF,
and the P-CSCF notes this as proof of identity. It subsequently inserts
P-Asserted-ID into future requests for purpose of identifying the caller
to both originating and terminating servers. (There is a lot more to it.)
Paul
Iñaki Baz Castillo wrote:
> Hi, is there in the real life any usage of P-Asserted-Identity other than
> indicating a PSTN gateway the callerid?
>
> Please, I mean *real* usage, don't suggest me dream and exotic escenarios
> written in a draft or RFC that nobody will never implement.
>
> Thanks a lot.
>
_______________________________________________
Sip-implementors mailing list
[email protected]
https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
