The modem temperature onset threshold value. If modem
temperature goes above the threshold and the value of
c3gModemTemperOnsetNotifEnabled is 'true',
the c3gModemTemperOnsetNotif notification will be sent.
The value of c3gModemTemperAbateNotifThreshold should be less
than or equal to the value of
c3gModemTemperOnsetNotifThreshold. e.g. setting
c3gModemTemperAbateNotifThreshold to 50 degree Celsius and
then setting c3gModemTemperOnsetNotifThreshold to
40 degree Celsius is not allowed and will be rejected.