3Com S7906E Configuration Manual page 2312

Authentication Mode Being
Being Scheme for details.
Step 2: Perform the following configuration on the modem directly connected to the switch.
AT&F ----------------------- Restore the factory settings
ATS0=1 ----------------------- Configure to answer automatically after the first ring
AT&D ----------------------- Ignore DTR signal
AT&K0 ----------------------- Disable flow control
AT&R1 ----------------------- Ignore RTS signal
AT&S0 ----------------------- Set DSR to high level by force
ATEQ1&W ----------------------- Disable the modem from returning command response and the
result, save the changes
You can verify your configuration by executing the AT&V command.
The configuration commands and the output of different modems may differ. Refer to the user
manual of the modem when performing the above configuration.
It is recommended that the baud rate of the AUX port (also the Console port) be set to a value lower
than the transmission speed of the modem. Otherwise, packets may get lost.
Step 3: Connect your PC, the modems, and the switch, as shown in the following figure.
Figure 4-1 Establish the connection by using modems
Modem serial cable
Telephone line
PSTN
Modem
Telephone number
of the romote end:
82882285
Console port
Step 4: Launch a terminal emulation utility on the PC and set the telephone number to call the modem
directly connected to the switch, as shown in
telephone number to that of the modem directly connected to the switch.
Password, and Console Port Login Configuration with Authentication Mode
Modem
Figure 4-2
4-3
and Figure 4-3. Note that you need to set the