There is no option to make it so that if you reject from one device that all the others stop ringing and the call is rejected. It’s counter to what most people want, so noone has added support for doing so.
It’s not difficult, but more complicated. If things like that would be part of some kind of standard behavior, almost no normal user would be able to configure anything. For the hack of it, try to add more phones and define waiting times for each phone. Then try to describe what you did to someone who thinks that computers simply work.
one other question, since you guys are the specialists
i am working on a door intercom system, verry basic
The intercom is capable of sending early media (video) in 183 session
I also see on supported sip client, the video before i pickup
Thats working great
but it doesnt work, when i call a dialgroup or queue … then there is no early media , only video after i pickup
is this possible to have also video before pickup on queue/group?
Well observed and, again, there are reasons for this behavior. If you really need something like this in several places, then I wouldn’t connect the stuff directly to Asterisk, but interpose a full video server like Zoneminder. Then you even have functions like video images on your smartphone when you’re on the go.
It’s also not standard stuff and it certainly does not come straight out of the box.
Most door stations also offer media streams, so you might be able to bring them into your current video server as well. It’s still not what you want, but you’d know what is going on, wherever you have a monitor.