Misc. Dialplan Tools send dtmf

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Send DTMF digits from the session using the method(s) configured on the endpoint in use. Use the character w for a .5 second delay and the character W for a 1 second delay.


send_dtmf <dtmf digits>[@<tone_duration>]


<action application="send_dtmf" data="0123456789ABCD*#@100"/>

Transmit the digits '0123456789ABCD*#' each having a duration of 100ms. If no duration is specified the default DTMF length of 2000ms will be used.


For SIP calls, the digits can be transmitted via inband, RFC2833, or INFO messages. See Sofia_Configuration_Files for configuration of DTMF transmission methods in mod_sofia.