At+Qwdtmf Play/Send Dtmf Tone(S) - Quectel UG Series Command Manual

Execute Command
AT+QLDTMF
Maximum Response Time
Parameter
Numeric type, indicates every DTMF‟s on time and mute time. Ranges: 1-1000,
<n>
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, #, *
NOTE
This parameter will not be saved.
Example
AT+QLDTMF=?
+QLDTMF: (1-1000),(0-9,A-G,*,#)
OK
AT+QLDTMF=2,"1,2,#"
OK
+QLDTMF: 5
AT+QLDTMF
OK

12.11. AT+QWDTMF Play/Send DTMF Tone(s)

This command is used to play or send DTMF tone(s).
AT+QWDTMF Play/Send DTMF Tone(s)
Test Command
AT+QWDTMF=?
WCDMA_UGxx_AT_Commands_Manual
After playing completed, report:
+QLDTMF: 5
Response
OK
300ms
//Query the range.
//Play 1, 2, # on time & mute time is 200ms.
//Stop playing.
Response
+QWDTMF:
(0,1),(0,1),("<DTMF_code>,<continuance_time>,<mute_tim
e>[,...]")
UMTS/HSPA Module Series
WCDMA UGxx AT Commands Manual
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