HP MSR2000/3000/4000 Router Series Layer 2 - WAN Configuration Guide

78
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter the TTY user line
view of an AM
interface.
line { first-num1 [ last-num1 ] | tty first-num2
[ last-num2 ] }
N/A
3. Enable the modem to
obtain caller number.
modem caller-number resolve
[ ata-waiting-time time ]
By default, a modem does not
obtain the caller number when it
accepts a call from a terminal.
Enabling modem callback
The callback function enables a modem to disconnect an incoming call and calls back the calling party
on request.
To enable modem callback:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enable the callback
function.
modem callback By default, the callback function is disabled.
Issuing an AT command to a modem
CAUTION:
This task changes the modem operating state. Incorrect configuration can cause problems such as dial-up
failure. When you perform this task, make sure you understand its impact on the modem access service.
To send AT commands to a modem, you must first place the modem in AT command mode. To confirm
that you can send AT commands, enter sendat at. The modem will return OK or 0 if it is ready to accept
AT commands. For more information about commonly used AT commands, see Layer 3—WAN
Configuration Guide.
To issue an AT command to a modem:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter interface view.
interface interface-type
interface-number
This command is available on the
following interfaces:
• AM interface
• Asynchronous serial interface
• Asynchronous/synchronous serial
interface in asynchronous mode
• AUX interface