[Serusers] Re: problem for using the latest pa module

[Klaus Darilion]

Hi Jamey!

Meanwhile a student of mine extended the pa module as part of his master 
thesis and SUBSCRIBE/NOTIFY works with the RTC-API - it was not difficult.

As soon as I get the code from the student I will post it somewhere,
together with the thesis - which is german :-(


regards,
klaus


Jamey Hicks wrote:

> Klaus Darilion wrote:
> 
>> Hi Jamey!
>>
>> Thanks for the information. One of my students here at the university 
>> tries to implement a system where you can watch mobile user running 
>> around and call them by clicking on the moving point at the map - all 
>> with SIP. Currently we produce the location information at the mobile 
>> client (ipaq + xlite) by reading the GPS data from a bluetooth GPS 
>> receiver.
>>
>> On the other side, we would like to have a Windows based client, which 
>> uses the RTC API. So the idea was to include the GPS information into 
>> the presence by using the "user-provided presence info" (like 
>> "x=123;y=456" instead of "i'm at lunch and come back at 2:30"). 
>> Nevertheless, therefore it would be necessary that the RTC API accepts 
>> the notficiations from ser.
>>
>> The RTC api sends its notifieys as application/xpidf+xml, not as 
>> application/cpim-pidf+xml. Is this the same format with a different 
>> name? I tried to find the definition of them, but I found several 
>> outdated drafts. I took a closer look at the drafts from the impp 
>> working group, but for example i couldn't find the definition of the 
>> <presentitiy> tag. Can you point me to a document which describes the 
>> format used by the RTC. Btw: which format uses the sipc or other 
>> commerical SIP-based IM applications?
>>
>> I also found no description of adding the exact geographical location 
>> into the presence information in a more generic way (not the 
>> workaround described above). Have you ever thought of this (as the 
>> columns are already defined in the database tables)? E.g. it could be 
>> a dedicated tag or an attribute in the location tag.
>>
> Hi Klaus,
> 
> I was just checking through my mail and saw this note again.  I do not 
> know how extensible xpidf is, but you including location in the 
> user-provided presence info field should work.  I have not had any luck 
> with ser handling a subscribe from a microsoft RTC client, but I'm sure 
> someone with some time and a packet tracer could get that working.
> 
> sipc and commercial SIP-based IM applications use 
> application/cpim-pidf+xml.  This format is still undergoing revision in 
> the SIMPLE working group.
> 
> The SER PA includes location information for each registered contact in 
> a separate tuple.  I wrote this up here: 
> http://pic.internet2.edu/docs/pals-ua-reqs.pdf
> 
> Jamey
> 
> 
>