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Other Features GCA70-245
88 Comdial August, 03
7.16 Data Interface Unit
The Data Interface Unit, or DIU, is an optional external device that
may be part of your system installation. It provides connections for
both your telephone and an IST device such as a standard single-line
telephone, a FAX machine, a data modem, a cordless telephone, or an
answering machine.
If the installer has arranged your station in this manner, you can
switch between your telephone and the IST device by pressing the
DATA button that the installer has programmed on your telephone.
The light associated with the DATA button provides status indications
for your reference.
• To select your telephone if the DATA light is on or is
flashing,
—Press the DATA button. If a call is in progress on the IST device, it
transfers to your telephone if you have your telephone handset lifted
or have your telephone in speakerphone mode. If you do not, the call
drops.
• To select the IST device if the DATA light is off,
—Press the DATA button. If a call is in progress on your telephone, it
transfers to the IST device if the device is off-hook; otherwise, the
call drops. Your telephone still provides visual messages and indica
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tions even though its voice path is routed to the IST device.
DATA Light Telephone Status
OFF Your telephone is selected for operation
On Green Your IST device is selected but is idle
On Red Your IST device is selected and is busy
Flashing Red Your IST device is ringing