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3CX Phone System for Windows System for Windows
Page 54
1. Click on the Lines > Add 3CX to 3CX bridge link to bring up the ‘Add 3CX to 3CX
bridge’ page.
2. Now enter the bridge options:
Virtual extension number – A bridge must be assigned a virtual extension number so
it can be addressed by the phone system. Accept the default or choose another
extension that is free.
Name – Give this bridge a name, for example ‘New York Office’
Public IP of other 3CX Phone System
– enter the public IP of the OTHER 3CX
Phone system machine.
Port to use for tunnel
– 3CX will use a VPN to tunnel the connection to the other
3CX Phone System. You can specify which port should be used for the tunnel.
Authentication ID and Password – enter the credentials to be used to authenticate
the connection. Note that you have to enter the SAME ID and password on the other
end of the “bridge”, i.e. in the other 3CX Phone System.
Behaviour – Select whether you wish this installation to the ‘Master’ or the ‘Slave’. In
actual fact the difference is minimal, it just defines who will register with who.
3. Now define the routes for inbound calls from the other office – these can be changed
based on whether they are received inside or outside office hours
4. Define codec priorities – to save bandwidth, we suggest using the GSM codec
5. In the section other options you can define the maximum number of simultaneous calls
you will allow for this bridge and whether outgoing or incoming lines will be allowed.
6. Next is to create an outbound rule and assign a prefix.
7. Now you must go to the configuration of the other 3CX Phone System and repeat the
process, ensuring that you use the same authentication ID and password.
Calling a party on the other 3CX Phone System
To dial a party at the connected 3CX Phone system, you must dial the assigned prefix,
plus the extension number of the person you wish to call.