Cisco TAC states the Expressway-E is the only MRA server that really needs a public-CA-signed certificate so clients and 7800/8800 phones connect without manual certificate acceptance.

Checked 2026-09-24

Vendor
Cisco
Product
Cisco Expressway
Subsystem
certificates
Deployment
on-premises
Region
not restricted
Release range
not version-scoped
Checked
2026-09-24

Sources

Cite this note

APA

WarmTransfer. (2026, September 24). Setting up Mobile and Remote Access on Cisco Expressway: source note expressway-mra-setup-expe-public-ca. WarmTransfer. https://warmtransfer.net/knowledge/claims/expressway-mra-setup-expe-public-ca

BibTeX

@misc{warmtransfer-claim-expressway-mra-setup-expe-public-ca,
  title  = {Setting up Mobile and Remote Access on Cisco Expressway: source note expressway-mra-setup-expe-public-ca},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/expressway-mra-setup-expe-public-ca},
  note   = {Source note expressway-mra-setup-expe-public-ca, checked 2026-09-24}
}

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