Step 6:
Set the user 801 and Dial Plan in IPX-1980-B
Activate the change and apply the test:
601 call 801, and 801 will ring and you can pick up the call.
7.3 How to combine two IPPBX in different network
The general environment for two IPX-1980 in different locations is: two IPX-1980 IP PBX
are both in the Internet and using the public IP.