H3C XE 200 IP, Operation Manual

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Operation Manual – System Management
H3C XE 200/2000 IP PBX
Chapter 8 Modem Management Configuration
8-1
Chapter 8 Modem Management Configuration
8.1 Introduction to Modem Management
8.1.1 Modem Management on the XE IP PBX
Modem is a widely used network device nowadays. It is vital for the XE IP PBX to
properly manage and control its Modem.
Now, numerous Modem manufacturers produce various models of Modem. Though all
of them support the industry-standard AT command set, they somewhat differ in actual
implementations and command details.
To properly and flexibly manage the Modem connected to the XE IP PBX, the XE IP
PBX provides the following Modem management functionality:
1) The script language for Modem management for a good control of the Modem
connecting to the XE IP PBX. A Modem script written with this language can be:
z
Executed directly through the script-string command to initialize or configure the
Modem.
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Triggered by particular events, such as XE IP PBX startup, Modem connection
establishment, the start-script command, and so on.
2) The use of Modem script cooperating with related commands can enhance the
remote configuration function of the XE IP PBX. When the AUX port works in flow
mode, you can establish a remote connection to the port through dumb terminal or
Modem dialup, and further configure or manage the XE IP PBX.
3) Through the Modem management, the XE IP PBX can intercommunicate with a
device of other vendor when both AUX ports of the two parties are in flow mode.
4) In addition, the Modem management on the XE IP PBX provides rich debugging
information for you to easily monitor and maintain the Modem.
8.1.2 Modem Script
I. Purpose of Modem script
Using the Modem scripts written with the script language provided by the XE IP PBX,
you can make the system:
z
Flexibly control different models of Modem. Through executing different
initialization AT command strings, the XE IP PBX can well cooperate with a variety
of Modems by different manufacturers with different models.
z
Log into a remote system in interactive mode. Interactive negotiation of script can
turn the system into different connection states. For example, after the AUX port
on the XE IP PBX set up a connection with the remote device through the Modem,