[SR-Users] Newbie question about RLS/XCAP/batch'd NOTIFYs

[Dmytro Bogovych]

It is interest, thank you!

I can set expire time to 10 seconds.
If kamailio will be stable with it and RLS - it is acceptable
workaround for now.

On Sat, Oct 6, 2012 at 9:11 PM, Peter Dunkley
<peter.dunkley at crocodile-rcs.com> wrote:
> Hi,
>
> The correct way to do something like this is with a polled subscription.  Instead of sending a normal, dialog-forming, SUBSCRIBE from the client you send a single, out-of-dialog, SUBSCRIBE with an expires value of 0.  The server should then send a single NOTIFY containing the full set of presence information without creating a dialog (so no further NOTIFYs).
>
> You can send these SUBCRIBEs at whatever frequency you require.
>
> Unfortunately, Kamailio does not currently support polled subscriptions.
>
> Regards,
>
> Peter
>
> On 6 Oct 2012, at 10:16, Dmytro Bogovych <dmytro.bogovych at gmail.com> wrote:
>
>> Greetings.
>>
>> I try to make iOS voip application with presence information.
>> iOS does not let too frequent network updates from server side when
>> runs in background mode.
>> So I cannot rely on plain PUBLISH / SUBSCRIBE scheme - it leads to
>> restart of application by iOS in many cases.
>>
>> Please see this post for details:
>> https://devforums.apple.com/message/565667#565667
>>
>> The question.
>> Can Kamailio provide way to reduce the number of NOTIFYs?
>>
>> I see it as
>> 1) iOS application creates & uploads RLS via XCAP
>> 2) iOS application asks server about changes in presence information
>> once per 10 minutes or when application goes to foreground state. The
>> best way is to receive single batch'd NOTIFY answer for all watched
>> peers.
>>
>> Is it possible to implement with kamailio?
>>
>> Thank you :)
>>
>> _______________________________________________
>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
>> sr-users at lists.sip-router.org
>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>
> _______________________________________________
> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
> sr-users at lists.sip-router.org
> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users