185
Managing a modem
A modem is a widely used network device. It is important for a device to correctly manage and control
the use of modems in a network. Many modem manufacturers and various modem models exist.
Even though all of them support the AT command set and are compliant with the industry standard,
each type of modem differs somewhat on the implementations and command details.
The device provides the following functions for managing a modem:
• Intercommunicating with the equipment from other vendors. The asynchronous serial interfaces
of the participating parties are operating in flow mode interconnected through modems.
• Providing rich debugging information for modem maintenance and monitoring.
• Enabling the modem to obtain the caller number of the terminal.
Configuring modem management
Step Command Remarks
1. Enter system view.
system-view
N/A
2. Enter user interface view.
user-interface
{ first-num1
[ last-num1 ] | {
aux
|
console
|
tty
|
vty
} first-num2 [ last-num2 ] }
N/A
3. Configure the call-in/call-out
rights for the modem.
modem
{
both
|
call-in
|
call-out
}
Modem call-in and call-out are
denied by default.
4. Set the maximum interval
allowed between picking up
the handset and dialing
when a user tries to establish
a connection.
modem timer
answer time
Optional.
60 seconds by default.
5. Enable the modem to obtain
the caller number of the
terminal.
modem caller-number resolve
[
ata-waiting-time
time ]
Optional.
By default, the modem does not
obtain the caller number when
accepting a call from the terminal.
This feature applies to only the
POS terminal connected to an
analog modem (AM) interface.
6. Set modem answer mode.
See "
Setting the modem answer
mode
."
Optional.
He
wlett Packard Enterprise
recommends not configuring this
step.
7. Return to system view.
quit
N/A
8. Configure modem through
AT commands.
See "
Issuing an AT command to a
modem
."
Optional.
9. Enable modem callback.
service modem-callback
Optional.
Disabled by default.
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