You enable Priority Calling for your system. The Class of Service (COS) that you assign to each user determines whether a user can use Priority Calling.
The following types of calls are always priority calls:
The system assigns a three-burst ringing-pattern as the default for a Priority Calling call.
The system generates the call waiting ringback tone that a single-line telephone user hears, even if the user is active on a call.
In contrast, the system does not generate the call waiting ringback tone for a multiappearance telephone if no call appearances are idle. Instead, a caller with a multiappearance telephone hears busy tone. The system generates the call waiting ringback tone if the telephone has an idle call appearance, including the call appearance that is reserved for call origination.
Note:
The VIP Caller field that is assigned in the Class of Service screen enables automatic priority calling when assigned to the originator of the call. This field might automatically be set to y by the ProVision tool (or any other similar software tool) used by Avaya administration personnel. If stations are set to y, the call will not follow with coverage to voice mail. You must change the setting to the default n to ensure coverage to voice mail.
