Source note · STIR SHAKEN attestation framework
In Webex Calling's mapping from verification result to client display, a call whose validation passed is shown as Verified Caller when the attestation is A or not provided and as Possible Spam when the attestation is B or C; a failed validation is shown as Potential Fraud; and no validation, or no verstat parameter at all, is shown as Possible Spam.
Checked 2026-09-16
- Vendor
- Cisco
- Product
- Webex Calling
- Subsystem
- STIR SHAKEN
- Deployment
- not restricted
- Region
- not restricted
- Release range
- not restricted
- Checked
- 2026-09-16
Sources
- Secure Calling and Spam mitigation — Cisco Systems, Inc. (help.webex.com) · tier 2 current vendor documentation · Verstat value and attestation table, read as table cells
Cite this note
APA
WarmTransfer. (2026, September 16). STIR SHAKEN attestation framework: source note shaken-attestation-b-displays-as-possible-spam. WarmTransfer. https://warmtransfer.net/knowledge/claims/shaken-attestation-b-displays-as-possible-spam
BibTeX
@misc{warmtransfer-claim-shaken-attestation-b-displays-as-possible-spam,
title = {STIR SHAKEN attestation framework: source note shaken-attestation-b-displays-as-possible-spam},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/shaken-attestation-b-displays-as-possible-spam},
note = {Source note shaken-attestation-b-displays-as-possible-spam, checked 2026-09-16}
}