iTegno 39XX GPRS Modem
AT Commands Guide
02000C17
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v1.5
Confidential
All specifications are correct at the time of release. iWOW Connections owns the proprietary rights to the information contained herein this
document. It may not be edited, copied or circulated without prior written agreement by iWOW Connections Pte Ltd. © 2011, 2012 iWOW
Connections Pte Ltd
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4.13
DTMF and Tone GeneVTS
Description:
This command allows the transmission of DTMF tones and arbitrary tones. These tones may be used e.g. when
announcing the start of a recording period. In GSM this operates only in voice mode. If the optional parameter
<duration> is left out, the tone duration is given by the sVTD (see +VTD description).
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Set command sets <DTMF> A single ASCII character in the set 0-9, #,*, A-D <duration> of the play tone
command. If the optional parameter <duration> is left out, the tone duration is given by the sVTD
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Test command returns the list of supported <DTMF> key (digit) values.
Syntax:
AT+VTS= <DTMF>,[<duration>]
Command
Possible Responses
AT+VTS=<DTMF>,[<duration>]
OK OR CME ERROR : <error>
AT+VTS=?
+VTS: (<list of <DTMF>s>), (list of supported <durations>s) OK
AT+VTS=0
OK
Note: command valid
AT+VTS=?
+VTS: (0-9, #,*,A-D),(1-255)
AT+VTS=A;+VTS=B;+VTS=#
Note: to send tone in AB# sequence
OK
Note: command valid
Defined Values
<DTMF>
is a single ASCII character in the set 0-9, #, *, A-D.
<duration>
integer in range 0-255, meaning 1/10(10 millisec) seconds multiples.