[SR-Users] P-Asserted-Identity in SIP INVITE from Kamailio IMS to PSTN (MGCF)

[BALL SUN]

Hi,

To clarify, we are talking about the PAI header from Caller..


On Tue, Jul 21, 2020 at 12:23 PM BALL SUN <paulrbk at gmail.com> wrote:
>
> Hi
>
> We have a question. We are preparing a setup to bridge the SIP call
> from Kamailio IMS to PSTN, but we are puzzling how we can present the
> P-Asserted-Identity in the SIP INVITE.
>
> By default, the PAI is in sip:user at domain, but we believed we should
> use<tel> format in the PAI when bridge to PSTN.
>
> question is
> 1. should we have two PAI headers?, or
> 2. should we paste <tel> format in PAI User Part and domain in PAI
> Host Part?, or
> 3. Should we only use one PAI header with tel format?
>
> In our test setup, we are using FHoSS, and the IMPU sip:user at domain
> have  below entry in "IMPUs from Implicit-Set"
> - sip:user at domain
> - tel:number
>
> Question is how we can extract the number from the HSS and presented in PAI?
>
> - RBK