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Examples
# Manually reboot the 3G/4G modem.
<Sysname> system-view
[Sysname] controller cellular 2/4/0
[Sysname-Cellular2/4/0] modem reboot
modem response
Use modem response to set a 3G/4G modem response timer and a consecutive response failure
threshold for auto recovery.
Use undo modem response to restore the default.
Syntax
modem response timer time auto-recovery threshold
undo modem response
Default
The response timer is 10 seconds and the consecutive response failure threshold is 3.
Views
Cellular interface view
Predefined user roles
network-admin
Parameters
timer time: Sets the response timer, in the range of 1 to 300, in seconds.
auto-recovery threshold: Specifies the consecutive response failure threshold for auto recovery.
The value range for the threshold argument is 0 to 10. To disable auto recovery, set the value to 0.
Usage guidelines
A 3G/4G modem might malfunction in an u nstable 3G/4G network or when the application
environment changes. During a malfunction, the modem cannot respond to the device's requests or
configuration commands. If the device does not receive any responses from the 3G/4G modem
within the timer, a response failure occurs. When the number of consecutive response failures
reaches the threshold, the device restarts the 3G/4G modem automatically. This releases the user
from manually rebooting the modem.
The device does not restart the 3G/4G modem when the 3G/4G modem has not made a successful
dialup since the last restart. This restriction avoids repeated restarts of the 3G/4G modem when
there are configuration errors.
Examples
# Set the response timer to 20 seconds and the consecutive response failure threshold for auto
recovery to 4.
<Sysname> system-view
[Sysname] controller cellular 2/4/0
[Sysname-Cellular2/4/0] modem response timer 20 auto-recovery 4
pin modify
Use pin modify to modify the PIN of a SIM/UIM card.
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