Nonpassword Auto Callback Function - NETGEAR XM128 ISDN Reference Manual

Reference Guide for the Model XM128 ISDN Digital Modem
You are asked to enter the original password, to enter a new password, and then to reenter the new
password for verification. For example, you are prompted with the following:
Password:
Enter the current supervisory password at this prompt. You are then prompted for a new password.
Password:
Enter the new supervisory password at this prompt. You are then prompted to verify the new
password.
Verify:
Enter the new supervisory password again at this prompt. You should receive the following
response:
OK
The supervisory password is now modified.
Use the command AT*Hn to modify the nth user password. You are prompted to enter the
supervisory password first; then the user's password for this entry is requested and verified. The
command AT*V lists both the 40 user passwords and the supervisor password on the screen for
viewing.

Nonpassword Auto Callback Function

In addition to the standard modem-like security functions described in the previous section, the
Model XM128 modem provides another simpler callback function. The calling party number
(origination address) is checked against the five prestored callback numbers before the B channel
is connected. If the CPN is matched with any one of the numbers, the incoming call is rejected
(without connection and without any charge) and the Model XM128 modem automatically calls
back using the matched phone number.
Table B-3. Auto callback commands
Command
AT*GC0
AT*GC1
AT*HCn=xxxx, - n=0,1,..,4
AT*VC
B-4
Table B-3
Description
This command disables the auto callback function (default).
This command enables the auto callback function.
This command sets the prestored numbers.
This command lists all the prestored numbers.
lists the auto callback commands.
Security Functions