3Com MSR 30, MSR 50 manual Undo service modem-callback, Example # Enable the callback function

496CHAPTER 29: MODEM CONFIGURATION COMMANDS

undo service modem-callback

View System view

Parameter None

Description Use the service modem-callbackcommand to enable the callback function of modems.

Use the undo service modem-callbackcommand to disable the callback function of modems.

By default, the callback function of modems is disabled.

When a modem line is active, that is, when the modem detects the carrier or data is being received, you may enable callback. As the service modem-callbackcommand uses modem scripts to implement callback before entering PPP, it enables callback before accounting is started. This can thus help you save cost.

Example # Enable the callback function.

<Sysname> system-view

[Sysname] service modem-callback