Siemens MC35 User Manual
Page 117

AT Command Set
MC35_ATC_01_V03.02
Page 117 of 228
13.03.2002
4.46 AT+VTS DTMF and tone generation (
Test command
AT+VTS=?
Response
+VTS:
(list of supported
Parameter
See write command
Write command
1.
AT+VTS=
2.
AT+VTS=
Response
This command allows the transmission of DTMF tones and arbitrary tones in
voice mode. These tones may be used (for example) when announcing the
start of a recording period.
• This is interpreted as a sequence of DTMF tones whose duration is set
with the +VTD command.
• This is interpreted as a DTMF tone whose duration is determined by ration>. OK Parameter length of the string is 29. The string has to be entered between ASCII character in the set 0-9,#,*, A, B, C, D. 1-255 duration of a tone in 1/10 second Reference GSM 07.07 Note This command only works during active voice call
If error is related to ME functionality:
+CME ERROR:
double-quote characters (””).