Chapter 6 – Callback Security
Multi-Tech Systems, Inc. MT5600BA-V92 User Guide 35

Front Panel Method

1. Turn on the modem.
2. Starting at the STATUS LCD, press the following buttons on the front panel to turn
callback security on and off:
To turn on callback security, press È, È, Æ, È, È, Æ, Æ to display the
CALLBACK ON? option, and then press the Enter button to select the option.
When remote callback security is turned on, each caller is asked to enter a
password, then is disconnected and called back by the modem. Also, dialing
number locations 0–3, for use with the DS=y dialing command, are replaced by
callback dialing number locations 1–30.
To turn off callback security, press È, È, Æ, È, È, Æ, Æ, Æ to display the
CALLBACK OFF? option, and then press the Enter button to select the option.
Callers no longer need a password to connect to the modem, the modem is
unable to call them back, and stored dialing number locations 0–3 become
available.
Assigning Callback Passwords

AT Command Method

1. Open a terminal program, such as HyperTerminal.
2. To store a callback password for the first callback memory location, type
AT#CBP01=xxxxxxxxxx, where xxxxxxxxxx is the first password, and press ENTER. The
password must be six to ten characters in length.
3. To store a callback password for the second callback memory location, type
AT#CBP02=xxxxxxxxxx, where xxxxxxxxxx is the second password, and press ENTER.
Note that the memory location number in the command is incremented by one.
4. Repeat as many times as necessary, up to memory location 30, until all passwords have
been entered.

Front Panel Method

1. Turn on the modem.
2. Starting at the STATUS LCD, press the following buttons on the front panel: È, È, Æ, È,
È, Æ, È, Æ. The ENTER PASSWORD #1? LCD appears.
3. Press the Enter button on the front panel to select callback memory location 1. The
ENTER PASSWORD LCD appears.
4. Press the ÇÅ or È button several times to select the first letter in the password.
5. Press the Æ button to go to the next letter in the password.
Note: To backspace or to cancel an entry, press Æ several times.
6. The password must be six to ten characters in length. Repeat steps 4 and 5 until the
password is entered, and then press the Enter button to store it. The PASSWORD
STORED LCD should appear.
7. Press the Enter button again to go to the PASSWORD SETUP LCD.
8. Press Æ, Æ to go to the ENTER PASSWORD #2? LCD.
9. Repeat steps 3–7 to enter the next password.
10. Repeat as many times as necessary, up to memory location 30, until all passwords have
been entered.
Warning: There is no way to review an entry to confirm that it has been entered
correctly. If you attempt to look at a password entry by pressing the Enter button for an
ENTER PASSWORD #n? LCD, it is possible to accidentally erase the entry.