Webex Calling shows an incoming call whose verstat is TN-Validation-Failed as 'Potential Fraud'.
Checked 2026-10-02
- Vendor
- Cisco
- Product
- Webex Calling
- Subsystem
- spam and fraud call indication
- Deployment
- multi-tenant
- Region
- us
- Release range
- current as of 2026-10-02
- Checked
- 2026-10-02
Sources
- Secure Calling and Spam mitigation — Cisco Systems, Inc. (help.webex.com) · tier 2 current vendor documentation · Verstat value and attestation table
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting STIR/SHAKEN attestation levels on outbound calls: source note stir-shaken-attestation-troubleshooting-webex-failed-fraud. WarmTransfer. https://warmtransfer.net/knowledge/claims/stir-shaken-attestation-troubleshooting-webex-failed-fraud
BibTeX
@misc{warmtransfer-claim-stir-shaken-attestation-troubleshooting-webex-failed-fraud,
title = {Troubleshooting STIR/SHAKEN attestation levels on outbound calls: source note stir-shaken-attestation-troubleshooting-webex-failed-fraud},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/stir-shaken-attestation-troubleshooting-webex-failed-fraud},
note = {Source note stir-shaken-attestation-troubleshooting-webex-failed-fraud, checked 2026-10-02}
}