2.5 PBX Configuration—[4] TRS/ARS2.5.1 PBX Configuration—[4-1] TRS/ARS—Leading DigitsDescriptionThe leading digits for TRS/ARS can be programmed.Screen / Tab Setting item Description Input Type Note1.LeadingDigitsLeading Digits Sets an outgoing callrestriction dial/ARSoutgoing call dial.Dial3TRS Level (COS)1Selects Acceptance/Non-acceptance of outgoingcalls for each LeadingDigit at TRS level 1.SelectTRS Level (COS)2Selects Acceptance/Non-acceptance of outgoingcalls for each LeadingDigit at TRS level 2.SelectTRS Level (COS)3Selects Acceptance/Non-acceptance of outgoingcalls for each LeadingDigit at TRS level 3.SelectTRS Level (COS)4Selects Acceptance/Non-acceptance of outgoingcalls for each LeadingDigit at TRS level 4.SelectTRS Level (COS)5Selects Acceptance/Non-acceptance of outgoingcalls for each LeadingDigit at TRS level 5.SelectARS CarrierPriority-1Selects which ARS carrieris used for phone numbersthat are permitted to makeoutgoing calls through theTRS feature.SelectARS CarrierPriority-2Selects which ARS carrieris used for phone numbersthat are permitted to makeoutgoing calls through theTRS feature.SelectARS CarrierPriority-3Selects which ARS carrieris used for phone numbersthat are permitted to makeoutgoing calls through theTRS feature.Select2.5 PBX Configuration—[4] TRS/ARSProgramming Item List 49