Cisco's Preferred Architecture also cites a SIP rate-limiting capability, configured with a maximum connections per second and a maximum burst size, as a toll-fraud mitigation.

Checked 2026-09-25

Vendor
Cisco
Product
Cisco Expressway
Subsystem
security
Deployment
on-premises
Region
not restricted
Release range
Collaboration System Release 14 design
Checked
2026-09-25

Sources

Cite this note

APA

WarmTransfer. (2026, September 25). Expressway business-to-business calling: source note expressway-b2b-calling-sip-rate-limiting. WarmTransfer. https://warmtransfer.net/knowledge/claims/expressway-b2b-calling-sip-rate-limiting

BibTeX

@misc{warmtransfer-claim-expressway-b2b-calling-sip-rate-limiting,
  title  = {Expressway business-to-business calling: source note expressway-b2b-calling-sip-rate-limiting},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/expressway-b2b-calling-sip-rate-limiting},
  note   = {Source note expressway-b2b-calling-sip-rate-limiting, checked 2026-09-25}
}

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