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Branch routing (Networking digital systems) <br />Calls can be routed among different systems, branches <br />• or departments of an organization at different locations <br />• with the press of a button. This feature takes advantage <br />of the sophisticated networking capabilities of the <br />DIGITAL family of systems. <br />Caller ID option (requires interface box) <br />Where available from the local central office, when a <br />station with a display, receives an incoming call on a <br />trunk through a caller ID interface box and programmed <br />with the Caller ID feature, a message will appear on the <br />display, indicating the source of the incoming call. This <br />feature also updates the ISNIDR database with the Caller <br />ID information. <br />Circuit Switched Data <br />See Section i, Data Applications, above. <br />Class Of Service (COS) <br />Extensions are assigned a Class of Service, through <br />which access and restriction profiles to various system <br />features and outside lines are programmed. The Class of <br />Service may be different for Dal, and Night operation. <br />Also, the DIGITAL systems maybe programmed to <br />provide five global (system -Aide) COSs which may be <br />accessed by any user with the appropriate password. <br />Users with the appropriate password may also take a <br />Class of Service from one station and after entering the <br />password use the COS at another station (see Travel <br />Class of Service in the User features, below). <br />Configuration backup and restore <br />From either a local or remote location, a customer's <br />configuration data can be uploaded from the system to <br />a PC, for backing up onto disk, or restored (downloaded) <br />from the PC to the system, to update a system <br />configuration. <br />i <br />46 • DIGITAL Family Features <br />CTI (Computer Telephone Integration) <br />applications <br />CTI applications, including Circuit Switched Data (CSD), <br />PC -LINK and TelradLlNK, enable Integration of your <br />DIGITAL Family of telephone systems and your <br />computer system. <br />Day and night service <br />For day and night modes, various call handling <br />parameters for features (such as incoming ring routing <br />and Class Of Service assignment) may be programmed. <br />Day or night service mode is normally activated from <br />the attendant position. <br />Dial By Narne (Aulonmted Attendant DBN) - IVAI <br />option <br />See TelradlVTl System Features in Section S, TelradIVNt <br />Voice Mail and Application Server, above. <br />Digital stations <br />The DIGITAL family of systems supports eight models <br />of Tetrad DIGITAL telephone sets. <br />Direct In Lines (DIL) <br />Incoming calls on lines in the DIGITAL systems can be <br />programmed to terminate directly at an extension, <br />without being transferred from an attendant position. <br />Direct Inward Dialing (DID) <br />Since the DIGITAL systems have the ability to translate <br />: incoming dialed digits, they will support Direct Inward <br />Dialing from a Central office.'fhis enables outside <br />• callers to dial directly to a particular extension within <br />: the system without the intervention of an attendant. <br />Direct Inward System Access (DISA) <br />An outside caller may dial into the system, access <br />system features and, on dialing a security password, <br />may even dial out of lhe.systeni on the lines of the <br />DIGITAL system. To prevent unauthorized calls, DISA <br />may be deactivated during night service. <br />