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MC55_ATC_V04.00
Page 405 of 475
3/17/06
Confidential / Released
17.6
AT+VTD Tone duration
This command refers to an integer
<duration>
that defines the length of tones transmitted with the
AT+VTS
command.
Syntax
Parameter Description
Duration of the DTMF signal in 1/10 seconds with tolerance.
The minimum duration of DTMF signals is 300ms. DTMF tones below 300ms cannot be generated.
1
(&F)(P)
...255
Test Command
AT+VTD=?
Response(s)
+VTD:
(list of supported
<duration>
s)
OK
Read Command
AT+VTD?
Response(s)
<duration>
OK
Write Command
AT+VTD=
<duration>
Response(s)
OK
ERROR
+CME ERROR
Reference(s)
PIN
ASC0 ASC1
MUX1
MUX2
MUX3 Charge
Last
GSM 07.07
!
%
%
%
%
%
!
!
!
<duration>
(num)