[bhavank]

group function does not work un-registered extension. Basic requirement of group function is that extension need to be registered if not it is skipped from the group call. if all extension are not available then it can be forwarded to mobile this feature is available

[archie]

How it is supposed to find IP of unregistered extension? To what IP PBX is supposed to send an INVITE?

[Pentangle]

Archie, what they're trying to say is that, from their viewpoint, a call sent to a DR ring group where all the extensions aren't registered doesn't work properly with the fallback options for the extensions within that group.

I hope i've summarised this issue properly.

Cheers,
Mike.

[archie]

Mike,

Now I see what they mean. But there's 'Destination if no answer' option for Ring Groups which could be set to outside number. And as far as I remeber we had tested that option and it used to work properly. I will ask our test team to check it once again.

[archie]

If we implement this - it will be major pain in ass for thousands of our customers. Because vast majority of PSTN gateways accept a call BEFORE it is really answered by cell or land-line phone. So, as soon as first forwarding reach PSTN gateway - it will accept a call, and all other calls of ring group will be immediately dropped. And you will be the first who will blame me for such behaviour

[archie]

It may happen in both cases. More often it happens for hardware PSTN gateways, though. For example, all Grandstream PSTN gateways behave that way.