OfficeServ 7100 PROGRAMMINGTECHNICAL MANUAL PART 8 APRIL 20078.1.5Event Pointer DescriptionOPERATOR This event is generated when the caller presses the operator assistancedigit.OPTION /OPTIONSThis event occurs when a caller presses the digit to hear more optionsfrom a subscriber's Extension.QUE-FULL This event is generated when a caller chooses to hold for an Extension,but that Extension's queue is already full.REMOTE-FWD This event occurs when an automated attendant caller tries to reach anExtension that has set forwarding to another Extension.USER-EXIT This event is generated when a subscriber presses the escape digit toexit their voicemail box.8.1.5 System RegistersOne of the most powerful features of the voicemail and automated attendant system inthe OfficeServ 7100 is the System Registers. System Registers are basically globalvariables that store DTMF or voice data. The Caller ID register, for example, stores thecaller ID information for the caller.Registers can be used to store information about the call, the caller, and entries madeby the caller. Register values are stored until either new values are written or the callsession ends. Registers are primarily read and written in Menu blocks, though someother blocks can modify certain register values. Registers can also be played back to acaller or a subscriber through the use of special dialing characters.One example usage of registers is in specialized paging applications. By default whenthe system pages a subscriber for message notification it sends the subscriber'sextension number only. The technician could modify the dialing string to include theparameters listed below.Below is the list of registers and their usage.Register DescriptionENTRY This register is not writeable, but instead is used to buffer the DTMF digitsentered by the caller in the current menu.KEY The Key register is used to buffer all DTMF entries made by the caller across allblocks. If a specific application requires it, this value can be set to instead onlybuffer one block at a time.CID This register stores the Caller ID information received by the system for thecaller.FID/FWDID This register stores the phone number of the device that transferred the call tothe voicemail or automated attendant. If a DID number rings directly to theautomated attendant, the register will contain the DID digits.TID This register stores the trunk number the caller is connected on. In the case ofinternal calls, this register is blank.PORT The Port register is read only and stores the extension number of the voicemailor automated attendant port the caller is connected to.TIME This register is read only and stores the current system time.