CallerCalled PartyCOS 1 COS 2 COS 3 COS 4 COS 5 COS 6 ...COS 4 ü ü ...COS 5 ü ü ü ü ...COS 6 ü ü ü ü ...: : : : : : : :ü: BlockExplanation:1. Assign each extension in a tenant to a certain COS number. Each tenant must have unique COSnumbers.Tenant 1: COS 1 and COS 2Tenant 2: COS 3 and COS 4Tenant 3: COS 5 and COS 62. Tenant-to-Tenant Call Block enables by the Internal Call Block feature.a. Tenant 1 (COS 1 and COS 2) can make calls to both Tenant 2 (COS 3 and COS 4) and Tenant 3(COS 5 and COS 6) as well as Tenant 1.b. Tenant 2 (COS 3 and COS 4) can make calls to Tenant 1 (COS 1 and COS 2) and Tenant 2.c. Tenant 3 (COS 5 and COS 6) can make calls to Tenant 3 itself only.• An incoming call distribution group must belong to one tenant because the following features aredetermined on a tenant basis (® 1.2.2.1 Incoming Call Distribution Group Features—SUMMARY):– Music on Hold while a call is waiting in the queue– The Time Table which determines the overflow destination.PT Programming Manual References[001] System Speed Dialling Number[006] Operator Assignment[320] ARS Mode[711] Music on HoldFeature Guide References3.1 Capacity of System Resources338 Feature Guide2.2.3 Tenant Service