Configuring The Modem Answer Mode; Configuring Modem Using The At Commands; Modem Configuration Example - 3Com MSR 50 Series Configuration Manual

356 C 17: M
HAPTER ODEM
Configuring the Modem
Answer Mode
Configuring Modem
Using the AT Commands
Modem Configuration
Example
C
ONFIGURATION
Operation
Quit to system view
Configure modem through
the AT commands
Configure modem callback
You need to configure the modem answer mode depending on the answer state
of the connected external modem. When the modem is in auto-answer mode (AA
LED of the modem lights), configure the modem auto-answer command to
prevent the device from sending an answer instruction after the modem answers
automatically. If the modem is in non-auto answer mode, configure the undo
modem auto-answer command.
n
If the modem answer mode configured is not consistent with the current answer
mode of the connected modem, the modem may operate improperly. So, do not
perform the operation unless absolutely needed.
Follow these steps to configure your modem answer mode:
Operation
Enter system view
Enter user interface view
Configure the modem to
work in auto-answer mode
Follow these steps to configure your modem through the AT commands:
Operation
Enter system view
Enter corresponding
interface view
Configure modem
through the AT
commands
Network requirements
Interface Serial 2/0 on your device connects to a remote Cisco router through DCC
dialup. When data needs transmission from IP address 1.1.1.1/16 to IP address
Command
quit
Refer to "Configuring Modem
Using the AT Commands" on
page 356
service modem-callback
Command
system-view
user-interface { first-num1
[ last-num1 ] | { aux | console
| tty | vty } first-num2
[ last-num2 ] }
modem auto-answer
Command
system-view
interface interface-type
interface-number
sendat at-string
Description
-
Optional
Optional
Modem calling back is
denied by default.
Description
-
-
Required
The modem works in
non-auto answer mode by
default.
Description
-
-
Required
The command works in the mode of
asynchronous serial interface
(including synchronous/asynchronous
operating in the asynchronous mode),
AUX interface or AM interface.