Change busy forwarding destination according to response
At Brekeke PBX user extension [Inbound] page [Forwarding Destination(Busy)] field, users can set two numbers separated by /.
Available from Brekeke PBX v188.8.131.52 and later,
At user extension 100 [Inbound] page, set:
[Forwarding Destination (Busy)] vm100/102
If phones assigned to user extension 100 return busy for the incoming call, the call will be forwarded to 100 voicemail.
If no assigned phone is registered at the time of call, the call will be forwarded to 102.