Administrator's Guide

Priority Calling
Issue 5 October 2002 1799555-233-506
■ Call Vectoring
The system generates intercept tone when someone attempts to activate
Priority Calling toward a VDN.
■ Call Waiting
A Priority Calling call waits on an active single-line telephone even if Call
Waiting is not assigned to the telephone. The active, single-line telephone
user receiving the call hears a distinctive (default is three-burst) priority
Call Waiting tone.
■ Consult
A Consult call acts as a priority call and waits at a single-line telephone,
even if the telephone does not have Call Waiting Indication assigned.
■ Distributed Communications System (DCS)
On a DCS tandem call to a single-line telephone, the called party does not
receive priority ringing if the caller activates Priority Calling by pressing
the priority button after making a call.
■ Last Number Dialed
If a priority call is to be made to the last number dialed, the Last Number
Dialed button must be used. The Last Number Dialed feature access code is
not valid after Priority Calling has been activated.
Single-line telephones (2500 series) can be administered so that distinctive
signals are not provided. In this case, 1-burst ringing is provided for
priority calls.
Related topics
To administer Distinctive Audible Alerting settings, see ‘‘Feature-Related System
Parameters’’ on page 795.
To allow Priority Calling, see ‘‘Class of Service’’ on page 672.