VoiceXML 2.0, a W3C Recommendation dated 16 March 2004, requires a platform to be able to detect and report character (DTMF) and spoken input simultaneously.

Checked 2026-09-30

Vendor
W3C
Product
VoiceXML 2.0
Subsystem
input-modality
Deployment
any
Region
not restricted
Release range
W3C Recommendation 16 March 2004
Checked
2026-09-30

Sources

Cite this note

APA

WarmTransfer. (2026, September 30). Modernizing a DTMF IVR to conversational AI: source note ivr-modernization-vxml-simultaneous-input. WarmTransfer. https://warmtransfer.net/knowledge/claims/ivr-modernization-vxml-simultaneous-input

BibTeX

@misc{warmtransfer-claim-ivr-modernization-vxml-simultaneous-input,
  title  = {Modernizing a DTMF IVR to conversational AI: source note ivr-modernization-vxml-simultaneous-input},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/ivr-modernization-vxml-simultaneous-input},
  note   = {Source note ivr-modernization-vxml-simultaneous-input, checked 2026-09-30}
}

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