config 'mobile_switch_type' 'mobile_switch'
    option 'data_switch'    '1'     # 0: off, 1: on
    option 'roam_switch'    '0'     # 0: off, 1: on

config 'net_cfg_type' 'net_config'
    option 'pref_net'       '3'     # 1: 3G only, 2: 4G only, 3: 4G preferred
    option 'net_sel_mode'   '0'     # 0: automatic, 1: manual
