Chapter 6 – Callback Security
Multi-Tech Systems, Inc. MT5600BA-V92 User Guide 36
AT Command Method
1. Open a data communication program, such as HyperTerminal.
2. To store a callback phone number in the first memory location, type
AT#CBN01=xxxxxxxxxx, where xxxxxxxxxx is the dialing string, and press ENTER. 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 a direct connection with password protection, but without hangup and callback, is desired,
the first character in the dialing string should be a hyphen (-).
3. To store a callback phone number in the second memory location, type
AT#CBN02=xxxxxxxxxx, where xxxxxxxxxx is the dialing string, and press ENTER. Note that
the memory location number in the command is incremented by one.
4. Repeat as many times as necessary, through memory location 30, until all dialing strings
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, È, Æ. The ENTER NUMBER #1? LCD appears.
3. Press the Enter button on the front panel to select memory location 1. The
ENTER NUMBER LCD appears.
4. Press the ÇÅ or È button several times to select the first character. If a direct connection,
without hangup and callback, is desired, the first character in the dialing string should be a
hyphen (-).
5. Press the Æ button to go to the next character in the dialing string.
Note: To backspace or to cancel an entry, press Æ several times.
6. The number can be up to 30 characters in length. Repeat steps 4 and 5 until the number is
entered, and then press the Enter button to store it. The NUMBER STORED LCD should
appear.
7. Press the Enter button again to go to the CALLBACK NUMBER LCD.
8. Press Æ, Æ to go to the ENTER NUMBER #2? LCD.
9. Repeat steps 3–7 to enter the next number.
10. Repeat as many times as necessary, up to memory location 30, until all numbers 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 number entry by pressing the Enter button for an ENTER NUMBER #n?
LCD, it is possible for you to accidentally erase the entry.