4.3
Station Features and Operation
Direct Inward System Access (DISA)
Allows an outside caller to access specific system features as if the caller is an extension
in the system. A DISA outgoing message is used to give outside callers assistance, such
as listing the extension numbers in the system. You can also reach extensions using a
single digit (DISA built-in auto attendant number).
Calling an extension
From Outside Telephone
In Non Security Mode/Trunk Security Mode:
DISA phone no.
Dial the DISA
phone number.
In All Security Mode:
DISA phone no.
Dial the DISA
phone number.
extension no.
Dial the
extension number.
• You can dial the DISA AA (Automated
Attendant) number instead.
Ringback tone
DISA outgoing
message
Ringback tone
DISA outgoing
message
Ringback tone
extension no.
Dial the
extension number.
• You can dial the DISA AA (Automated
Attendant) number instead.
DISA user code
Enter the pre-assigned
DISA user code.
Station Features and Operation
D
Ringback tone
Dial tone
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