6 Oct
2012
6 Oct
'12
2:11 p.m.
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(a)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 :)
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