3com 3031 Instruccion De Instalación

C

HAPTER

 77: M

ODEM

 C

ONFIGURATION

On the asynchronous interface connected to the modem, use a standard AT 
command to configure the modem baud rate, and send the “AT” command to 
the modem. If “OK” is received from the modem, it indicates that the modem can 
automatically adapt to the corresponding baud rate. Then, write the configuration 
into the modem for conservation, and the corresponding AT command is 
“AT&W”.

Figure 267   Network of the configuration for the router to manage the modem

Configure a modem script.

[3Com]script-string baud "" AT OK AT&W OK

Execute the corresponding script in interface view, supposing the modem is 
connected to the interface tty1. Using the 

 

command to see the absolute index be 1.

<3Com> start-script baud 1

To restore the ex-factory modem settings, use the “AT&F” command.

[3Com]script-string factory "" AT OK AT&F OK

<3Com> start-script factory 1

Enable the router to initialize the Modem to which the asynchronous interface is 
connected when powering on the router or rebooting it.

[3Com]script-string init "" AT OK AT&B1&C1&D2&S0=1 OK AT&W OK

[3Com]user-interface tty1

[3Com-ui-tty1]modem

[3Com-ui-tty1]script trigger init init

Configure a Modem script to dial directly.

[3Com]script-string dial "" AT OK ATDT8810058 CONNECT

PC

PSTN

Router

Modem