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• Both modems go on-hook.
• The answer modem calls the
originating modem back.
• Modems exchange security
handshake (again) and
connect.
4.12 Configuring Modems for APP
The procedures for configuring the
originating and answer modems for
both types of APP are summarized
below and then explained in detail
in the subsequent sections.
4.12.1 APP W
ITHOUT
• Enter the same password in the
front panel password screen
(on the LCD) of the
originating modem and answer
modem.
4.12.2 APP W
ITH
• Enter a password in the front
panel password screen of the
originating modem (the user
password).
• A password must be entered in
the front-panel password screen
of the answer modem (the mas-
ter password). Any password
will do (even a single charac-
ter), except that it should not
be the same as the user pass-
word, and it should not be the
CHAPTER 4: General Operation and Special Features
C
ALLBACK
C
ALLBACK
same as any other password
stored in the answer modem's
memory (for APP or MPP).
APP with callback will not func-
tion if the master password is
removed.
• Use the Hayes AT &Z command
to store the user password and
callback phone number in the
answer modem's memory.
4.12.3 P
ASSWORD
For either type of APP, a password
must be preprogrammed through
the PASSWORD screen of both the
answer and originating modems, as
explained below.
For APP without callback, use the
same password on both modems.
For APP with callback, do not use
the same password—see Section
4.12.2.
Establishing or Changing the
Automatic Password
The automatic password can be
changed (or initially established)
using the front panel password
screens shown below. These screens
are accessed via the PASSWORD
screen.
Change-Password Screen:
DEC
S
CREENS
SKIP
INC
89
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