Rainbow Electronics FARGO MAESTRO 100 (with TCP_IP) - Manual (Page 596)

Audio Commands
DTMF Decoding Mode +WDDM
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WM_DEV_OAT_UGD_049 - 001 VOLUME 4 August 23, 2007
21.13.3 Parameters and Defined Values
:
requested operation
0 stop DTMF decoding (default value)
1 start DTMF decoding
: decoded DTMF character
The possible decoded DTMF characters are: [0-9],[A-D],*, #
: duration of the incoming character in milliseconds
range: at least 10, depending on DTMF decoder behaviour and
up to approximately 1200000 (20 minutes), value limited by the
network capabilities.
21.13.4 Parameter Storage
The parameter is stored in EEPROM without using the AT&W command.
The default value can be restored using AT&F.
21.13.5 Examples
Command Responses
AT+WDDM=?
Note: Test command
+WDDM: (0,1)
AT+WDDM=1
Note: Start DTMF decoding
OK
AT+WDDM=1
Note: Start DTMF decoding
+CME ERROR: 558
Note: DTMF decoding already started by another client.
AT+WDDM?
Note: Read current value
+ WDDM: 1
OK
Note: Decoding started
+ WDDI: ”*”,60
Note: ‘*’ char was decoded during 60ms