Skip to main content

Send DTMF

The SendDtmf verb is used to play DTMF digits in the call.

  • The , and lowercase w characters introduce a half-second pause into the DTMF sequence.
  • An uppercase W character introduces a one-second pause into the DTMF sequence.
  • *, #, a-d, and A-D are also supported in addition to the numeric characters 0-9.

Text Content#

NameDescription
digitsString containing the DTMF characters to be sent in a call. Allows a maximum of 50 characters. The digits will be sent one-by-one with a marginal delay.

Attributes#

ATTRIBUTEDescription
toneDuration(optional) The length (in milliseconds) of each DTMF tone. Default value is 200. Range: decimal values between 50 - 5000.
toneInterval(optional) The duration of silence (in milliseconds) following each DTMF tone. Default value is 400. Range: decimal values between 50 - 5000.
tip

All w, , and W chars replace toneInterval, so if a <SendDtmf toneInterval="300">1w2</SendDtmf> is used, 2 will be played 500ms after 1 because of w

Webhooks Received#

There are no webhooks received after the <SendDtmf> verb is executed.

Examples#

Send DTMF Tones to a Call#

<?xml version="1.0" encoding="UTF-8"?>
<Response>
<SendDtmf>12w34</SendDtmf>
</Response>