At+Vts Dtmf And Tone Generation - Siemens Brodersen MC55 AT Command Manual

17.7

AT+VTS DTMF and tone generation

is intended to send ASCII characters or strings which cause the Mobile Switching Center (MSC) to trans-
AT+VTS
mit DTMF tones to a remote subscriber. The command can only be used during active voice calls and offers the
following variants:
•
AT+VTS=<dtmfString>
• AT+VTS=<dtmf>[,<duration>] allows to send a single DTMF tone. In this case, the duration can be ind-
vidually determined during the call.
Syntax
Test Command
AT+VTS=?
Response(s)
+VTS: (list of supported<dtmf>s), (list of supported<duration>s)
OK
Write Command
AT+VTS=<dtmfString>
Response(s)
OK
Write Command
AT+VTS=<dtmf>[, <duration>]
Response(s)
OK
ERROR
+CME ERROR
Reference(s)
GSM 07.07
Parameter Description
(str)
<dtmfString>
String of ASCII characters in the set 0-9,#,*,A, B, C, D. Maximal length of the string is 29. The string must be
enclosed in quotation marks ("...").
(str)
<dtmf>
ASCII character in the set 0...9,#,*, A, B, C, D.
(num)
<duration>
Tone duration in 1/10 seconds with tolerance. If not specified current setting of
The minimum duration of DTMF signals is 300ms. DTMF tones below 300ms cannot be generated.
1...255
MC55_ATC_V04.00
Confidential / Released
allows to send a sequence of DTMF tones with a duration defined with AT+VTD.
PIN
!
Page 406 of 475
ASC0 ASC1 MUX1 MUX2
% % % %
AT+VTD
MUX3 Charge Last
% ! ! !
is used.
3/17/06