7 at+vts dtmf and tone generation, At+vts, Obile – Siemens MC55 User Manual
Page 399: Mc55 at command set
MC55 AT Command Set
16.7 AT+VTS
s
m
obile
MC55_ATC_V01.05
Page 399 of 469
2/10/04
Confidential / Released
16.7
AT+VTS DTMF and tone generation
The Write command is intended to send ASCII characters or strings which cause the Mobile Switching Center
(MSC) to transmit DTMF tones to a remote subscriber. It works during active voice calls only and offers the fol-
lowing variants:
•
allows to send a sequence of DTMF tones with a duration defined with
.
•
[,
] allows to send a single DTMF tone. In this case, the duration can be ind-
vidually determined during the call.
Syntax
Parameter Description
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 ("...").
ASCII character in the set 0...9,#,*, A, B, C, D.
Test Command
AT+VTS=?
Response(s)
+VTS:
(list of supported
s), (list of supported
s)
OK
Write Command
AT+VTS=
Response(s)
OK
Write Command
AT+VTS=
Response(s)
OK
PIN
ASC0
ASC1
MUX1
MUX2
MUX3
!
%
%
%
%
%
Reference(s)
GSM 07.07
(str)
(str)