Cisco requires organisations in the United States and Canada using on-premises PSTN through a Local Gateway or Cisco Unified Border Element to configure a SIP copy list covering the From, P-Asserted-Identity and P-Attestation-Indicator headers together with 9 SIP profile rules, in order to pass verstat information through to Webex Calling, and states that applying the configuration when the service provider does not send the parameter does not affect calls.

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

Cite this note

APA

WarmTransfer. (2026, September 16). STIR SHAKEN attestation framework: source note shaken-local-gateway-must-copy-verstat-through. WarmTransfer. https://warmtransfer.net/knowledge/claims/shaken-local-gateway-must-copy-verstat-through

BibTeX

@misc{warmtransfer-claim-shaken-local-gateway-must-copy-verstat-through,
  title  = {STIR SHAKEN attestation framework: source note shaken-local-gateway-must-copy-verstat-through},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/shaken-local-gateway-must-copy-verstat-through},
  note   = {Source note shaken-local-gateway-must-copy-verstat-through, checked 2026-09-16}
}

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