User Manual

73M2901CE AT Command User Guide UG_2901CE_027
38 Rev. 2.0
4.4.66 S65 – DTMF Detect Register
(Default = 0)
Bit 7 indicates a valid DTMF detection. A register value of ze ro indicates no detect for the polled
application. Bits 6 - 4 are reserved. Bits 3 - 0 indicate the tone pair detected. Works with command J6
and bit 7 has to be set in order to be valid. The following tables define DTMF decoding:
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Det Valid Reserved Reserved Reserved DTDET3 DTDET2 DTDET1 DTDET0
DTMF Detect bits
Dialed
Digit
Tone Pair Detected
Det Valid DTDET 3 DTDET 2 DTDET 1 DTDET 0 Low Tone
(Hz)
HighTone
(Hz)
1 0 0 0 0 D 941 1633
1 0 0 0 1 1 697 1209
1 0 0 1 0 2 697 1336
1 0 0 1 1 3 697 1477
1 0 1 0 0 4 770 1209
1 0 1 0 1 5 770 1336
1 0 1 1 0 6 770 1477
1 0 1 1 1 7 852 1209
1 1 0 0 0 8 852 1336
1 1 0 0 1 9 852 1477
1 1 0 1 0 0 941 1336
1 1 0 1 1 *
941
1209
1 1 1 0 0 # 941 1477
1 1 1 0 1 A 697 1633
1 1 1 1 0 B 770 1633
1 1 1 1 1 C 892 1633
4.4.67 S66 – Wait for Dialtone
(Default = 8)
Sets the maximum number of seconds the modem waits for dial to ne. Range is 1 - 254 (seconds).
4.4.68 S67 – Qualify Dialtone
(Default = 120)
Sets the minimum duration for dial tone. Range is 1 – 254 (1/10 0 sec).
4.4.69 S68 – Test Timer
(Default = 0)
Times how long the self-tests should run in seconds. Rang e is 0 to 254.