Vertical Comdial DX-80, Technical Manual

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DX-80 Programming Manual
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5.1 Phantom Lines / Virtual Numbers
Phantom lines are software resources that act as placement mechanisms for call processing. CO line and intercom
calls can be routed to phantom lines (or virtual numbers) where they can be accessed by any extension that has an
appearance (button) for that phantom line. If internal call routing requires a connection (CO line or intercom) to be
placed in a general access location, phantom lines can be a good solution.
Phantom lines do not ring; the system indicates a call at a phantom line by fast flashing the associated LED only.
Calls that are connected to phantom lines are usually announced using the page feature for proper pickup.
You must program phantom lines onto Flexible Feature Buttons.
If no appearance of the phantom line exists in the system, the user attempting to call the phantom line or transfer a
call to the phantom line will receive error tone and see the following message on the display.
OUT OF SERVICE
To set up phantom lines/virtual numbers, see Section 4.20.2.4, Numbering Plan 4 .
5.2 Assigning the Tenant Group
The Tenant Groups feature allows you to separate system resources so the DX-80 system can operate as two or
three independent systems deployed at a single site.
Tenant Grouping allows you to independently allocate resource directory numbers. The directory numbers for
system resources interact only with the resources within the tenant group. For example, you designate attendant
extensions for each tenant group; these attendant extensions act independently for the assigned tenant group.
When a caller dials 0 to reach the attendant, the system automatically calls the attendant extension you designated
for that group (attendant extension 2 for tenant group 2, etc.).
You can completely isolate extension functions depending on how you assign the tenant groups; i.e., you can pro-
hibit calling from one tenant group to another. You do not have to isolate extensions to be able to isolate system
resources, however. (See Section 5.6,
Setting the CO Line Type , Section 5.9, Assigning Ring Type for the CO Line ,
and Section 5.10, Setting the Answer Position for Day and Evening for details on how to isolate system resources
without invoking full isolated tenant operations).
Other tenant group programming includes:
• Call Handling - Tenant Calling
• Extension - Tenant Group.