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3CX Phone System for Windows System for Windows
Page 61
Remote end of the tunnel – in most cases the tunnel will be running on the 3CX
Phone System machine, in which case you need to enter the public IP of the 3CX
Phone System machine. Enter the SIP Port of the 3CX Tunnel (by default 5090)
Enter the Local end of Tunnel. Leave the default ‘Localhost’ and 5080 to use the
Tunnel installed by default with 3CX Phone System.
Authentication ID and Password – Enter the credentials with which this side of the
bridge must authenticate with the ‘Master’. In other words, you will specify these
credentials when creating the ‘Master’ side of the bridge.
Note: You will have to open port 5090 on the firewall behind which ‘Master’ 3CX
Phone System resides.
7. Now you must assign a prefix that users must dial to access the bridge. Click Next to
create the bridge.
8. After it is created it, you can edit bridge options by going to Lines > Manage and
clicking on the bridge you created. You can edit:
Codec priorities – to save bandwidth, we suggest using the GSM codec
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.
Configure what to do with calls coming in via the bridge outside office hours
9. Now you must go to the Management Console of the other 3CX Phone System and
set-up the opposite end of the bridge, i.e. either a ‘Master’ or a ‘Slave’. You must use the
same authentication credentials!
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.