Telit Wireless Solutions LE910C series - AT+VTS - DTMF Tones Transmission

LE910Cx AT Commands Reference Guide
80502ST10950A Rev. 14 Page 85 of 1904 2022-03-04
Not Subject to NDA
3.1.10. AT+VTS - DTMF Tones Transmission
The command handles the transmission of DTMF tones.
3GPP TS 27.007
TIA IS-101
SIM Presence
Setting saved
Can be aborted
MAX timeout
SELINT
Required
No
No
-
2
AT+VTS=<dtmfString>[,<duration>]
Execution command allows the transmission of DTMF tones.
Parameters:
Name
Type
Default
Description
<dtmfString>
string
-
string of <dtmf>s, i.e. ASCII characters
in the set (0 9), #,*,(A-D),P; the string
can be at most 255 <dtmf>s long;
it allows the user to send a sequence
of DTMF tones, each of them with a
duration that was defined through
+VTD command
<duration>
integer
0
duration of a tone in 1/100 sec;
this parameter can be specified only if
the length of first parameter is just
one ASCII character
Values:
0
:
a single DTMF tone will be transmitted for
a duration depending on the network, no
matter what the current AT+VTD setting is