1.3.3
Battery Back Up
You can install an optional battery backup that provides power to the system in the event of a
power failure. For more information, see section 2.18.1, Installing The Battery Backup.
1.3.4
DSS/BLF Console
You can add a separate DSS/BLF console to provide additional DSS/BLF buttons to a particular
station (such as an attendant). These additional DSS/BLF buttons work just like the DSS/BLF
buttons on the telephone. For more information, see section 2.6, Installing The DSS/BLF
Console.
1.3.5
Caller ID
Using the Caller Identification Interface (product code CID08), the digital telephone system
provides caller ID information as part of the SMDR printout and as ASCII data input for use
with personal-computer-based application programs.
1.3.6
Tracker
With Tracker you can send messages to Tracker Pagers assigned to a station extension number.
When the pager is activated the user reads the message on the pager’s LCD display. The system
delivers alpha/numeric or numeric-only messages depending on the Tracker Model being used.
1.3.7
DVA
Digital voice announcing uses a hardware peripheral device (product code DVA01) connected to
a digital station port to play recorded messages during an in-progress call. The DVA stores the
messages in its memory for recall when needed.
1.3.8
DIU
The Data Interface Unit (DIU) is a device connected to a digital station port of a DSU. The DIU
provides connections for a digital multiline telephone and another device such as a industry
standard telephone (IST), FAX, or modem. The DIU switches the voice path from the DSU to
either the digital telephone or the IST by pressing a button on the digital telephone.
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DSU II Digital Telephone System
1–6 Introducing The DSU II Digital Telephone System
Summary of Contents for DSU II
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