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Direct Inward System Access (DISA)
40 Strata DK Electronic Telephone 5/00
Direct Inward System Access (DISA)
Outside callers with telephones that send Dual-tone Multi-frequency (DTMF) tones
can call on CO lines programmed for DISA and dial a [DN] or outgoing CO Line
without going through an attendant or operator. See the System Administrator for this
number.
➤ To make an internal DISA Call
➤ To make an external DISA Call
1. Dial the DISA CO
Line telephone
number.
You hear a ringback tone signal, then an internal dial
tone for 10 seconds.
If you do not dial within 10 seconds, the system
automatically causes the DISA CO Line to ring a
telephone or group of telephones designated in system
programming. Then, if the call is not answered within
15 seconds after the ringing starts, it disconnects.
2. Dial a [DN]. You hear ring tone. When the station answers, you are
connected.
Note If the call is not answered after 6 rings or 24
seconds, (whichever comes first) you hear
busy tone.
3. Press
anytime you
hear busy tone and
repeat Step 2 to make
another call.
Note To call another station after completing a
DISA station call, the internal party must
transfer you. Station and System Page cannot
be accessed on DISA calls.
1. Call the DISA CO
Line telephone
number.
You hear a ringback tone signal, then an internal dial
tone for 10 seconds.
If you do not dial within 10 seconds, the system
automatically rings the DISA CO Line as a normal
incoming call. Then, if the call is not answered within
15 seconds after the ringing starts, it disconnects.