Transferring calls between freepbx?

Question

Asterisk

There is FreePBX1 (PBX Firmware: 3.211.63-10 FreePBX 2.11.0.37) in the same city with its city number. There is another FreePBX2 (PBX Firmware: 4.211.64-7 FreePBX 2.11.0.37) in another city with its own city number. These two FreePBXs are connected by an IAX trunk. Each has its own number base.
How can I make it so that when calling a landline number on FreePBX1, the extension number of a FreePBX2 subscriber calls?
I tried to create a RingGroup on FreePBX1 with a FreePBX2 subscriber number - this scheme does not work.

Answer 1

Near the field for specifying internal numbers in the RingGroup. There is a hint. In it in black and white - if the specified number is in the trunk (just your case, the number you specified is available through the trunk on another PBX), then add `#` to the end of the number.