[Savannah-users] exosip unsubscribe

[Guillaume Carmel-Archambault]

Hi,

I'm adding presence support in SFLphone and got a question about 
unsubscribtion requests using sip/exosip 3.0.3 and Asterisk 1.6.

Everything is fine for subscription to presence, but to keep the number 
of SIP messages as low as possible I want to be able to unsubscribe the 
contacts when they are not watched anymore or when a SIP account closes.

I tried using eXosip_subscribe_build_initial_request with an expire 
value of 0 and it works, but then the API crashes when trying to remove 
the subscription. I also taught about using eXosip_subscribe_remove with 
the identifier of the subscription, but this doesn't work either.

I also saw that when registering a SIP account it seems to clear all 
existing subscription requests, but this would have been preferable on 
unregistering and also can't be applied for a single unsubscription.

So my question is, is there a way to cleanly send an unsubscribe request 
for an individual contact and can all subscriptions for a SIP account be 
closed on unregister.

Thanks
Guillaume Carmel-Archambault