Chapter 6 – Callback Security
Multi-Tech Systems, Inc. MT5600BA-V92 User Guide 38
Callback Security Commands
The following AT commands are used with callback security.
Command: #DBn Callback Enable/Disable
Values: n = 0 or 1
Default: 0
Description: Enables or disables callback security. When callback security is
enabled, phone number memory locations 0–4, used for quick
dialing and DTR dialing, become unavailable and are replaced by
callback security memory locations 1–30. The phone number
memory locations and their contents are restored when callback
security is disabled.
#DB0 Disables callback security.
#DB1 Enables callback security.
Command: #CBNy=[-]x Store Callback Number
Values: y = 01–30
x = dialing string
Default: None
Description: Stores the callback dialing string x in memory location y. The
dialing string can include the digits 0 through 9 and any of the
following characters: #, *, comma (,), semicolon (;), W, A, B, C, and
D. Up to 30 characters can be used. Example:
AT#CBN01=9,16127853000. If the optional - character precedes
the dialing string, and the caller appends the same character to the
password, the caller is connected immediately, and the hangup
and callback are skipped.
Command: #CBPy=x Store Callback Password
Values: y = 01–30
x = password (6–10 characters)
Defaults: None
Description: Stores callback security password x in memory location y. The
password must have 6 to 10 characters.
Note: A direct connect password may not end with a hyphen (-).