[OpenSIPS-Users] SIP Presence Aggregation Issue

[Klaus Darilion]

Am 11.05.2010 12:16, schrieb Adrian Georgescu:
>
> On May 11, 2010, at 10:26 AM, Klaus Darilion wrote:
>
>>
>>
>> Am 01.04.2010 16:30, schrieb Adrian Georgescu:
>>>
>>> On Apr 1, 2010, at 3:10 PM, Schumann Sebastian wrote:
>>>
>>>> Hi Bogdan
>>>>
>>>> Yes, in an "ideal world", this re-publishing with BUSY and ONLINE is
>>>> wanted, but the toggling not. Priorities would help (you'd receive
>>>> that but not trigger anything on the user interface as the highest
>>>> priority will keep its state), but we don't have them yet, so in
>>>> that case the decision must be made somewhere else or not at all.
>>>>
>>>
>>> All we need is a good client to figure out how to use these concepts,
>>> right?
>>
>> Regarding clients:
>>
>> AFAIK Microsoft's Communicator SUBSCRIBEs its own presence and as soon
>> as you manually set the status on one of your clients, all other
>> clients
>> will change its state too.
>
> It makes sense to keep all clients in sync somehow and subscribing to
> itself already provides this data.
>
> But what happens with automatically derived data like keyboard
> activity or on-the-phone activity, they cannot be synchronized can they?
>
> The PIDFs will diverge sooner or later...

Yes. I think this approach only works for manually set status.

Maybe we should dig more into how MS solved it - they probably did not 
waited for IETF to have a solution for presence aggregation.

regards
Klaus