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Telephone Features
D
3.2
Telephone Features
Any Telephone
Enter the DISA
phone number.
Ringback tone and
one short beep
DISA phone no.
line access code
Enter a line access code
(9 or 81 through 83).
phone no.
Enter the phone number
of the external party.
In None Security Mode
In Trunk Security Mode
In All Security Mode
Enter the DISA
phone number.
Ringback
tone and
one short
beep
DISA
phone no.
line access
code
Enter a
line access code
(9 or 81 through 83).
DISA security
code
Enter the
pre-assigned
DISA security
code.
One short
beep
phone no.
Enter the
phone number
of the external
party.
Dial tone
from the
Central
Office
Dial tone from
the Central Office
Enter the DISA
phone number.
Ringback
tone and
one short
beep
DISA
phone no.
line access
code
Enter a
line access code
(9 or 81 through 83).
DISA security
code
Enter the
pre-assigned
DISA security
code.
One short
beep
phone no.
Enter the
phone number
of the external
party.
Dial tone
from the
Central
Office
Dial .
Dial .
Calling an external party
WARNING
When you enable the Outside - Outside Line Call feature of Direct Inward System
Access (DISA) function, if a third party discovers the password (DISA security code)
of the system, you have a risk that they will make illegal phone calls using your
telephone line, and the cost may be charged to your account.
In order to avoid this problem, we strongly recommend the following points:
1: Carefully maintain the secrecy of the password.
2: Specify a complicated password as long and random as you can make it.
3: Change the password frequently.
