Quectel UG Series

UMTS/HSPA Module Series
WCDMA UGxx AT Commands Manual
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Parameter
This parameter will not be saved.
Example
AT+QLDTMF=? //Query the range.
+QLDTMF: (1-1000),(0-9,A-G,*,#)
OK
AT+QLDTMF=2,“1,2,#” //Play 1, 2, # on time & mute time is 200ms.
OK
+QLDTMF: 5
AT+QLDTMF //Stop playing.
OK
12.11. AT+QWDTMF Play/Send DTMF Tone(s)
This command is used to play or send DTMF tone(s).
After playing completed, report:
+QLDTMF: 5
Execute Command
AT+QLDTMF
Response
OK
Maximum Response Time
300ms
<n> Numeric type, indicates every DTMF‟s on time and mute time. Ranges: 1-1000,
the unit is 1/100 second when <y> is set to 1; or 1/10 second when <y> is not set.
<DTMF_string> String type, max 20 DTMFs, separated by comma. DTMFs: 0-9, A-G, #, *
AT+QWDTMF Play/Send DTMF Tone(s)
Test Command
AT+QWDTMF=?
Response
+QWDTMF:
(0,1),(0,1),("<DTMF_code>,<continuance_time>,<mute_tim
e>[,...]")
NOTE
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