[OpenSIPS-Users] Sip clients that supports PIDF-LO

[Aldo Febro]

hi Evandro,

Thank you for your reply. That helps!

best regards,
Aldo

On Wed, Sep 30, 2015 at 4:47 AM, Evandro Villaron Franceschinelli <
evillaron at gmail.com> wrote:

> Hello Aldo,
>
>
>
> We used the open source Sipp to simulate this Sip client.
>
>
>
> In accordance with  i2 architecture- NENA, the SIP client must send the
> location information using two ways:
>
> -         Directly into your body using the PIDF-LO (RFC 4119) Location
> Object (LO).
>
> -         Or  by reference with Location Key (LK) through of new header
> in SIP: Geolocation (RFC 5031), VPC uses this Key to obtain the location
> information in consultation with the LIS (Location Information Server).
>
>
>
> These informations should be got by User Agent caller running an LCP -
> Location Convey Protocol. LCP can be implemented adapting the DHCP (RFC
> 4776 / RFC 6225) or via HELD protocol (RFC RFC 5985). The implementation
> has to be done in UAC because of LIS with its LO information is located in
> own ISP(Internet server provider) that the UA has access network, becoming
> easier addressing this LIS.
>
>
>
> In i2 specification the interface between call server (in case the
> OpenSIPS) and LIS isn't expected, because of the difficulty of
> implementing. The difficulty is in various factors such as privacy, device
> identification and mainly because the call server (OpenSIPS) doesn't know
> the address of appropriate LIS, It is required of a search algorithm of
> this LIS in the source ISP (the RFC 5896/7216 describes this algorimos,
> however this algorithm is not as trivial).
>
>
>
> *In practice*, I can not provide any SIP client that has implemented the
> LCP.
>
> For testing we used the Sipp to simulate this Sip client using these
> mentioned RFCs, is attached the XML scenario file that we used in Sipp,
> with the new Geolocation header and  with PIDF-LO in the body,  the
> OpenSIPS needs only one to handle the emergency call.
>
>
>
> best regards
>
>
>
> Evandro Villaron
>
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