Setting The Modem Answer Mode; Issuing An At Command To A Modem; Modem Management Configuration Example - HPE FlexNetwork MSR Series Comware 5 Layer 2 - Wan Access Configuration Manual

Setting the modem answer mode

Set the modem answer mode according to the actual answer mode of the modem:
•
If the modem is in auto-answer mode (a modem is in auto-answer mode if its AA LED lights are
on), use the modem auto-answer command to prevent the device from issuing answer
instructions.
•
If the modem is in non-auto answer mode, use the undo modem auto-answer command to
enable the device to issue answer instructions when incoming calls reach.
Make sure you set the same answer mode as on the modem. If a different answer mode is set, the
modem might operate incorrectly. Do not perform the operation unless absolutely needed.
To set modem answer mode:
Step
Enter system view.
1.
Enter user interface view.
2.
Set the modem to operate in
3.
auto-answer mode.

Issuing an AT command to a modem

Step
Enter system view.
1.
Enter interface view.
2.
Configure the modem by
3.
issuing an AT command to it.

Modem management configuration example

Network requirements
A device is connected to a Cisco router through its Serial 2/0 interface and two modems. A
connection between the two devices is established through DCC dialup when data is to be
transmitted between them. For more information about DCC dialup, see "Configuring DCC."
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
186
Remarks
N/A
N/A
Optional.
Non-auto answer mode by
default.
Remarks
N/A
N/A
This command is applicable to
asynchronous serial interfaces
(including
synchronous/asynchronous
interfaces operating in
asynchronous mode), AUX
interfaces, and AM interfaces.