Philips Speechmike6284 Configuration Manual page 12

Transmit "No Read" Message
Parameter # 0x5E
When enabled, if a symbol does not decode, "NR" is transmitted. Any prefix or suffixes
which have been enabled are appended around this message.
When disabled, if a symbol does not read, nothing is sent to the host.
12
ENABLE NO READ
(0x01)
DISABLE NO READ
(0x00)