The Control Hub setting that blocks calls failing caller identity validation is disabled by default, and Cisco states that when it is enabled such calls are not routed to the user's endpoints while the calling number is still added to the called user's call history.

Checked 2026-09-16

These calls aren’t routed to the user's endpoints. However, the calling number is added to called user’s call history. By default, this value is disabled.
Vendor
Cisco
Product
Webex Calling
Subsystem
STIR SHAKEN
Deployment
not restricted
Region
not restricted
Release range
not restricted
Checked
2026-09-16

Sources

Cite this note

APA

WarmTransfer. (2026, September 16). STIR SHAKEN attestation framework: source note shaken-blocking-is-off-by-default-and-logs-the-number. WarmTransfer. https://warmtransfer.net/knowledge/claims/shaken-blocking-is-off-by-default-and-logs-the-number

BibTeX

@misc{warmtransfer-claim-shaken-blocking-is-off-by-default-and-logs-the-number,
  title  = {STIR SHAKEN attestation framework: source note shaken-blocking-is-off-by-default-and-logs-the-number},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/shaken-blocking-is-off-by-default-and-logs-the-number},
  note   = {Source note shaken-blocking-is-off-by-default-and-logs-the-number, checked 2026-09-16}
}

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