VEGA Phoenix PSI Data Fax Modem - Manual (Page 78)

PSI-DATA/FAX-MODEM/RS232
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5.3.3 Password-Protected Call Back
The %S1 command enables password-protected call back. If you wish to activate
this function, switch your modem to auto answer mode (automatic call acceptance;
ATS0 > 0). Your modem now accepts calls and executes the usual handshake. The
caller is then requested to enter a password. If the password is invalid or the time
allocated for password entry has been exceeded, the caller has two more attempts
to enter the correct password.
When the correct password is entered, the modem aborts the existing connection
to dial the number that is stored in the memory under &Z0. The modem has three
attempts to establish a connection with the call back number.
5.3.4 Dial In With Password Protection
The %S2 command enables password validation when an incoming called is
accepted. In this case, the caller must enter a password after the incoming call has
been accepted. If the password is invalid or the time allocated for password entry
has been exceeded, the caller has two more attempts to enter the correct
password. When the correct password is entered, the modem continues to operate
as usual, otherwise the connection is aborted.
Automatic call acceptance must be activated for all password-protected functions
(see Section "Description of the S Registers" on page 6-22).