Case Communications Mayze 24, Справочное руководство, Страница: 73 / 166

The caller's modem can be any modem compatible with the answering
modem. If both are Mayze modems, level 1 security may be invoked. This
will provide an additional level of security where the modems will
exchange passwords before entering into the dialback security process.
The answering modem must be configured for dialback security (see below)
and asynchronous operation, and may also have error correction/
compression and/or level 1 security enabled. The passwords and dialback
numbers are stored in the normal telephone directory.
Enabling Dialback Security
The dialback security feature is enabled in the central site modem by
entering the command:
ATS43=255
There are no special commands for the caller's modem.
To disable dialback operation, enter the command:
ATS43=0
When dialback is disabled, the modem will accept incoming calls and
connect the caller to its DTE without any verification.
Setting up the Answering (Central Site) Modem
Having enabled dialback security, you need to carry out the following
procedure to make the necessary directory entries (see also Section 6.1.1):
1. Type:
ATNn&Z
where
n
is a directory location
type:
<Ctrl-N>
to specify a callback number
modem response: Callback No.
2. Type: nnn where nnn is the number to call back
type: <Ctrl-R> to specify a password
modem response:
Password
3. Type:
ppppp
where
ppppp
is a five-character password
type: <CR> to save to directory
modem response: OK
X460-306851 Issue 1 5-13 Rev.0