EMC Study Guide

The next three fields define the Multilevel Precedence and Preemption (MLPP) characteristics of the endpoint. The only field that applies to the device in this example is the MLPP Domain. MLPP grants higher priority only from calls with the same MLPP domain. For this reason a MLPP domain is needed if MLPP is being used.

The Prefix DN field defines what digits will be added to the front of an incoming destination number. This is applied to the number after CallManager truncates the number based on the Num Digits setting.

The Num Digits field determines the number of digits of an incoming dialed number that CallManager will use. CallManager counts from right to left, so if the number entered in this field is four and the digits received are 8105559090, 810555 would be removed and only 9090 would be used to determine the destination of this call.