2.1 Incoming Call Features2.1.1 Incoming Trunk Call Features2.1.1.1 Incoming Trunk Call Features—SUMMARYDescriptionIncoming calls via a trunk (public line) are distributed to their destinations according to one of several distributionmethods.1. Available Networking Type for Each Card TypeEach trunk port of an optional trunk card or the mother board can be assigned a networking type: Public,Private, or VPN (Virtual Private Network).Card Type Channel/Protocol TypeNetworking TypePublic (DIL/DID/DDI/MSN) Private (TIE)*1 Virtual PrivateNetwork (VPN)Mother Board(V-IPGW)H.323 ü ü* üMother Board(V-SIPGW)SIP ü*LCOT — ü*BRI/PRI CO ü* ü*2ExtensionQSIG-Master ü*QSIG-Slave ü*E1 DR2 ü* üü*: Enable (default); ü: Enable*1 ® 4.3.1 TIE Line Service*2 ® 4.3.3 ISDN Virtual Private Network (ISDN-VPN)2. Distribution MethodOne of the following methods can be assigned to each trunk port:Method Description & ReferenceDirect In Line (DIL) Directs a call to a preprogrammed single destination (e.g., theoperator).® 2.1.1.2 Direct In Line (DIL)Direct Inward Dialling (DID) Directs a call with a DID number from a DID line to a preprogrammeddestination.DID is also known as Direct Dialling In (DDI).® 2.1.1.3 Direct Inward Dialling (DID)/Direct Dialling In (DDI)20 Feature Guide2.1.1 Incoming Trunk Call Features
