This feature provides the capability to apply an alerting tone to an outgoing trunk call after an administrable amount of time. The amount of time that elapses before the alerting tone is applied to the call can be specified, and varies from 2 to 999 minutes. If the timer field is blank (the default value), the feature is disabled and the alerting tone is not applied to the call.

To set the outgoing trunk alerting timer, the system uses the Class of Restriction (COR) of the outgoing trunk group or the originating station. The value in the Use Trunk COR for Outgoing Trunk Disconnect/Alert field determines which of these CORs is used. However, the timer does not apply to incoming trunk calls that connect to outgoing public network trunks, with the exception of remote access.

The outgoing trunk alerting timer starts after the called party connects to the trunk. The outgoing trunk call is considered answered if:

• The network provides an answer supervision line signal.

• An ISDN CONNect message is received.

• The Answer Supervision Timeout timer expires.

• The call classifier classifies the call as answered.

• The Outgoing End of Dial Timer expires.

The alerting tone is applied to the call upon expiration of the outgoing trunk alerting timer. The tone is heard by all parties on the call and is repeated at a specified interval until the call ends. The interval is determined by the administration of the Trunk Alerting Tone Interval (seconds) field.

The outgoing trunk alerting timer is cancelled if the outgoing trunk drops or is dropped before the timer expires.

The outgoing trunk alerting timer only affects outgoing public network trunks (CO, DIOD, FX, WATS, and ISDN public-network).