Specifications

System Programming IMl66-107
Direct Inward Station Dialing (DISD) Configuration
The DISD feature allows an external party to call an intercom station directly without assistance by the
attendant. The system must receive the DISD call on a line that you have programmed to allow this feature. You
can program any line to be a DISD line for both the normal mode of operation and the night transfer (of ringing)
mode of operation.
You can program the number of rings that the system will allow to occur on a DISD line.
If you set a large
number of rings, the system allows stations that have a line appearance for the DISD line time to service the call
in a regular manner. Setting the number of rings to 0 disables the line for DISD use. If you wish to dedicate a
line for DISD use, it is a good practice to set it for one ring. You can program the amount of time the system
allows for a caller to dial an extension number. You can also program the DISD assist station that will answer
calls that callers do not complete during the dial time limit.
It is a good practice for you to connect a music source to the system to provide a reassurance to the caller
during a camp-on situation when the DISD feature is being used.
l To make a record of the programming configuration, mark the desired requirements. in the direct inward station
dialing records chart found at the end of this section.
0 To make the programming selections, dial the feature code and then dial the configuration code (or press the
programming button where appropriate).
NOTE: A lighted LED next to the programming button for the selection indicates the current configukhn.
When
a sing/e button ptuvides a toggle (on/offl action, the lighted LED indicates the active feature;
0 The first step in any programming sequence is to enter the base level.
Once in this mode, you can dial the
feature code for any desired configuration.
Enter the base level with the following procedure: press ITCM then
dial H# 7 4 6 +R. The last step is to press the SPKR button to end the programming procedure and return the
system to normal operation.
(LED On = Enabled)
time limit, the system routes a DISD call to - Dial 1 or press Al = 6 seconds.
the assist station if you have programmed - Dial 2 or press A2 = 9 seconds.
one; otherwise, it drops the line.
- Dial 3 or press A3 = 12 seconds.
- Dial 4 or press A4 = 15 seconds.
- Dial 5 or press A5 = 30 seconds.
3. Press * for configuration mode.
To change setting, repeat procedure and make different selection.
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