Logical InstallationInstallation Manual 93To configure a port, select the port in the Port parameters list and configure each of the fieldsprovided in the area beneath the list.Trunk GroupUse the pull-down list to select the Trunk Group number with which the port will be associated.In the sample above, all of the ports are configured as members of Trunk Group 1.Delete DigitsType the number of digits to be deleted from the dialled number when calling this Trunk.The maximum number of Delete Digits is 32.This parameter should normally be set to "0".Length of Call ReferenceSet to "1" all the time.Interface TypeSet to "Basic Interface" all the time.PAD InUse the pull-down list to select the PAD value (in dB) to be applied to voice signals cominginto the unit.It is usually best to use the default value for this field until it is determined by observation, thatadjustments are required.PAD OutUse the pull-down list to select the PAD value (in dB) to be applied to voice signals going outfrom the unit.It is usually best to use the default value for this field until it is determined by observation, thatadjustments are required.DTMF detectUse the pull-down list to select the DTMF detection method to be used by the unit; No (ne),Incoming, Outgoing, or Both.It is recommended that this be set to Outgoing.