"ATA" "ATD" "AT+BAC" "AT+BCS" "AT+BIA" "AT+BIEV" "AT+BIND" "AT+BLDN" "AT+BRSF" "AT+CCWA" "AT+CHUP" "AT+CIND" "AT+CKPD" "AT+CLCC" "AT+CLIP" "AT+CMEE" "AT+CMER" "AT+CNUM" "AT+COPS" "AT+IPHONEACCEV" "AT+VG" "AT+VTS" "AT+XAPL"