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Direct Inward System Access (DISA)
Strata DK Digital Telephone 5/99 39
DISA Calls - External
2. When you hear dial
tone, dial a [DN].
You hear ring tone. When the station answers, you are
connected.
If the call is not answered after 6 rings or 24 seconds,
(whichever comes first) you hear busy tone.
3. If you receive busy
tone or want to dial
another number while
the station is still
ringing, press
.
Repeat Step 2.
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. From outside the
system, 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.
2. When you hear dial
tone, dial a CO line or
CO line access code
You hear dial tone. If you do not hear dial tone, you must also
dial a DISA security code.
...or dial a CO line or
CO line access code
and then a DISA
security code. See
Table 12 on page 109
access codes.
You hear dial tone.
Note See the System Administrator for the DISA security
code number. If the correct code is not entered, the call
disconnects.
3. When you hear dial
tone, dial a telephone
number.
If set in system programming, both parties hear a warning tone
approximately 4, 10, or 20 minutes after the call was made.
Press
to reset the timer each time the tone sounds (for an
additional 4, 10, or 20 minutes). If you do not press
, the call
disconnects approximately one minute after the tone.