#!/bin/bash
start() {
  sudo usb_modeswitch -W -I -v 12d1 -p 1446 -M 55534243123456780000000000000011063000000100010000000000000000
  sudo ifdown wlan0
  sleep 10
  while : ; do
       sudo wvdial
       sleep 900
   done
}

stop(){

}

case $1 in
	start|stop) "$1" ;;
esac