Siemens AC75 Manuel D’Utilisation

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AC75_ATC_V01.002

Page 460 of 569

10/30/06

Confidential / Released

This command refers to an integer 

 that defines the length of tones transmitted with the 

command. 

Duration of the DTMF signal in 1/10 seconds with tolerance. 

The minimum duration of DTMF signals is 300ms. 
1

(&F)(P)

...255

Test Command

AT+VTD=?

Response(s)

+VTD: 

(list of supported

s)

OK

Read Command

AT+VTD?

Response(s)

OK

Write Command

Response(s)

OK

ERROR

+CME ERROR

Reference(s)

PIN

ASC0 ASC1 USB MUX1 MUX2 MUX3 Charge

4

Last

GSM 07.07

<duration>

(num)