R3303-HP HSR6800 Routers Layer 2 - WAN Command Reference

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service modem-callback
Use service modem-callback to enable the callback function.
Use undo service modem-callback to disable the callback function.
Syntax
service modem-callback
undo service modem-callback
Default
The callback function is disabled.
Views
System view
Default command level
3: Manage level
Usage guidelines
The service modem-callback command enables the modem to initiate a callback upon activation of the
line when the modem detects the carrier or data is being received. Because the callback occurs before
the PPP process starts and accounting is performed, costs are saved.
Examples
# Enable the callback function.
<Sysname> system-view
[Sysname] service modem-callback