Other Trunk Features
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PBX Compatibility
The system can accommodate Central Office (CO) lines or lines from a Private Branch Exchange (PBX)
already installed at the customer site. The lines are similar in the way incoming calls are answered, but
different in the way outgoing calls are placed - an outgoing call on a PBX line requires an access code before
dialing, while an outgoing call on a CO line does not. System/telephone features are available to both types
of lines, and PBX features are available to the PBX lines via the Flash feature (see Flash).
PBX Night Mode
If any of lines are from a PBX, and when the PBX is set in night mode, the lines connected to PBX are
switched to real CO lines, provision is made for such things as abbreviated dialing. If you have a PBX Trunk
Access Code programmed with a dialed number for abbreviated dialing, such as "9 pause 81448111111",
when your System is in the night mode the 9 and the pause will be omitted when using the abbreviated
dialing in night mode.
Private Line
A Private Line is simply a line on your phone that nobody else in the system can use. Only you can place and
answer calls on your Private Line. Your supplier can tell you if you have a Private Line.
1. Lift handset.
2. Press Private Line key.
3. Dial telephone number.
Tenant Service
Tenant Service allows two or more independent businesses to share the telephone system. Each tenant group
has their own attendant, outside lines, paging zones and abbreviated dial numbers. Night Service can also be
activated by each tenant. Check with your supplier if your system uses Tenant Service.
To place a call on your
Private Line: