Using a 212 to forward internal calls from an entry intercom to a voip phone number. I do this by specifying InboundCallRoute as sp1(NUMBER).
In order for the intercom ringer to be picked up by the obi, I also set RingThreshold to 13.50-16.50.
This works, but if the call is missed on the forwarding device (sometimes it cuts off before ringing more than a few times too) then often the line is held open, and does not disconnect. You can hear some electrical noise on the intercom speaker and it will stay like that until the power is manually cycled on the intercom itself.
Is there a setting I can help fix this?
