[OpenSIPS-Users] how to check if callee is actually alive

Vlad Paiu vladpaiu at opensips.org
Mon May 30 17:06:52 CEST 2011


You might want to check out the new feature in trunk, that allows SIP 
pinging the dialog endpoints.
See http://lists.opensips.org/pipermail/users/2011-May/017930.html


Vlad Paiu
OpenSIPS Developer

On 05/25/2011 03:11 PM, Michele Marchetto wrote:
> hi,
> 	my situation is as follow. I have a stateful opensips that handle
> registrations and balancing and a cluster of asterisk servers
> responsible to handle the media and other stuff.
> The problem arises when a user calls another one who has gone offline.
> The caller has to wait the timeout to expires before the call hangs up.
> Is there a way to ping the callee (from opensips) to check if he is
> actually online or not and promptly react in both cases?
> I don't want to count on the location table to see if a user is actually
> online because the reregisteration timer could be too high. Forcing the
> reregister timer to a lower value would cause a (unneeded) network load
> overhead.
> Advices are appreciated.
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