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MODEL TI984 TELEPHONE INTERFACE 42004-071F
f:\standard ioms - current release\42004 instr. manuals\42004-071f.doc
05/03
If someone calls and discovers that the designated party line is busy, they can choose the voice access
method to notify the person they are trying to reach to return their call. The selective access method
ensures that, even when the designated party line is in use, incoming calls are not shut out.
Using this method, the incoming call is automatically answered by the telephone interface. The telephone
interface generates an audible signal that is heard by the calling party. The signal indicates the status of
the party line: one beep indicates that the party line is not in use and three beeps indicates that the party
line is in use.
The telephone caller has 30 seconds to respond by dialing one of two 2-digit codes:
The first code, 1X, accesses the page line as done in the Voice Access method; and the second, the 1Y
code, rings on the page line as done in the Ring Access method. The programmer can chose any numbers
from 0 to 9 for Xand Y, but note that Xand Y must be different. Refer to the Programming Table on
page 11 for additional information.
Four programmable parameters are available with the Selective Access method.
Programmable Parameters
•Page duration (0 to 99 seconds) -- the amount of time the caller has to make a page before being
automatically connected to the party line
•The maximum number of seconds the call will be held before it is disconnected if not answered (0 to
99 seconds)
•Enabling or disabling the auto-connect mode. If the unit is programmed to auto-connect, the caller
will be directly connected to the designated party line if that line is already off-hook
•Access codes – the two-digit code used by the caller to access either the page line or the party line
Manual Access Method
The manual access method is ideal for use when the TI984 is connected to a switchboard manned by an
operator. All incoming calls go to the switchboard, and the operator must connect the call by pressing the
ACCESS button on the front cover of the TI984. The TI984 is inactive until the operator presses the
ACCESS button.
Operating Instructions
Many of the operating details of the TI984 are explained in the Programming Procedure section (page 7),
and the operation of the TI984 is often dependent on the selected parameters. For instance, when using
the selective access method for incoming calls, the directions on accessing the Page/Party®line are
different than when using the voice access method. However, some operations remain the same
regardless of the programmed parameters. The details of these particular parameters are outlined below.
Answering Incoming Calls
Incoming calls can be answered in the following ways:
•If the designated party line is idle (with all stations on the designated party line on-hook), the call is
answered when any station on the designated party line goes off-hook. If the party line is in use, all
the stations on the party line must be on-hook before the call can be answered.
•With the voice access method selected, the TI984 can be programmed to automatically connect to the
designated party line, even if the party line is in use. The call is connected after a programmed
number of rings and a preset paging period has elapsed.
