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46 CHAPTER 5: BASIC TELEPHONE OPERATION
For example, suppose a company has three offices:
■ Phones at the Chicago office use an extension range from 1000
through 1999.
■ Phones at the Atlanta office use an extension range from 2000
through 2999.
■ Phones at the Dallas office use an extension range from 3000 through
3999.
In this example, to call a user in Dallas, a user in Chicago dials a Dallas
extension (3000 through 3999). The dial plan on the Chicago VCX system
sets up the necessary connection to the Dallas VCX system and then to
the extension at that site.
Class of Service
Override
The Class of Service Override feature allows you to apply the capabilities
of your own VCX telephone temporarily to another VCX telephone on
the same local network.
For example, the telephone in a conference room may be configured to
prevent long-distance telephone calls. You may, however, need to place a
long-distance call during a meeting. If the permissions included with the
Class of Service on your phone allow long-distance calling, you can use
the Class of Service Override feature to apply your phone features to the
conference room phone for one call only.
To activate the one-call-only Class of Service Override from any VCX
telephone:
1 Pick up the handset.
2 Press Feature + 433. The Display Panel prompts you for the required
input.
3 Enter your telephone extension.
4 Enter your password and press #.
5 Enter the destination number as you would from your own VCX
telephone.
When you use Class of Service (CoS) Override, any reports that are
generated on the VCX system indicate that the CoS features of your own
VCX telephone were applied temporarily to the telephone on which you
made the call.