Because RFC2833 is the only DTMF method Webex Contact Center lists, a BYO PSTN path that delivers digits only as SIP INFO, KPML, unsolicited NOTIFY or in-band audio needs its gateway or SBC to convert them to RFC2833 before Webex Contact Center.
inferred · Checked 2026-10-02
- Vendor
- Cisco
- Product
- Webex Contact Center
- Subsystem
- voice ingress media
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-10-02
- Status
- inferred
- Checked
- 2026-10-02
Sources
- Set up voice channels for Webex Contact Center — Cisco Systems, Inc. (Webex Help Center) · tier 2 current vendor documentation · section 'PSTN Media and Signaling Requirements for Webex Contact Center', DTMF row, read with the CUBE DTMF Relay chapter
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting DTMF digits not detected in Webex Contact Center flows: source note wxcc-dtmf-troubleshooting-oob-must-convert. WarmTransfer. https://warmtransfer.net/knowledge/claims/wxcc-dtmf-troubleshooting-oob-must-convert
BibTeX
@misc{warmtransfer-claim-wxcc-dtmf-troubleshooting-oob-must-convert,
title = {Troubleshooting DTMF digits not detected in Webex Contact Center flows: source note wxcc-dtmf-troubleshooting-oob-must-convert},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/wxcc-dtmf-troubleshooting-oob-must-convert},
note = {Source note wxcc-dtmf-troubleshooting-oob-must-convert, checked 2026-10-02}
}