static char *hf_cmd_explain[] = {
"set up connection with peer device",
"release connection with peer device",
"setup audio connection with peer device",
"release audio connection with peer device",
"query current operator name",
"query current call status",
"answer incoming call",
"reject incoming call",
"dial <num>, e.g. d 11223344",
"redial",
"dial memory",
"start voice recognition",
"stop voice recognition",
"volume update",
"retrieve subscriber information",
"retrieve last voice tag number",
"response and hold",
"send dtmf code.\n <dtmf> single character in set 0-9, *, #, A-D",
"send XAPL feature enable command to indicate battery level",
"send battery level and docker status",
};