LE910Cx AT Commands Reference Guide
80502ST10950A Rev. 14 Page 86 of 1904 2022-03-04
a single DTMF tone will be transmitted for
a time <duration> (in 10 ms multiples), no
matter what the current AT+VTD setting is
The character P does not correspond to any DTMF tone, but it is
interpreted as a pause of 3 seconds between the preceding and
succeeding DTMF string elements.
This command operates in voice mode only (see +FCLASS).
AT+VTS=?
Test command provides the list of supported <dtmf>s and the list of
supported <duration>s in the format:
(list of supported <dtmf>s)[,(list of supported <duration>s)]
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