On Tuesday 03 October 2006 20:57, Shidan wrote: > when you press the hold button on the grandstream, it sends another > sip invite to Asterisk, then asterisk says ok I understand you want to > put this on hold, then the grandstream stops the rtp packet, then when > you unhold it, the grandstream sends in effect another invite to the > asterisk server and when the session is established again, the rtp > starts flowing.
I bet Manager events are triggered for this... and if Manager events are triggered the channel can be "stolen" or at least timed and some kind of notification sent to the phone... But lord, this is getting hackish in a hurry... -A.
