Rainbow Electronics FARGO MAESTRO 100 (with TCP_IP) - Manual (Page 605)

Audio Commands
Play DTMF tone +WDTMF
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WM_DEV_OAT_UGD_049 - 001 VOLUME 4 August 23, 2007
21.17 Play DTMF tone +WDTMF
21.17.1 Description
This Wavecom proprietary command allows a DTMF tone to be played on the current
speaker.
21.17.2 Syntax
Action command
AT+WDTMF=<mode>[,<dtmf>[,[<gain>][,<duration>]]]
OK
Read command
None
Test command
AT+WDTMF=?
+WDTMF: (list of supported <mode>s),(list of supported
<dtmf>s),(list of supported <gain>s),(list of supported
<duration>s)
OK