In the UC traversal zone Expressway-E uses SIP port 7001 by default with TLS verify subject name set to the name in the Expressway-C certificate, and Expressway-C uses the same port with Peer 1 address set to the Expressway-E FQDN.

Checked 2026-09-24

Vendor
Cisco
Product
Cisco Expressway
Subsystem
traversal
Deployment
on-premises
Region
not restricted
Release range
current as of 2026-09-24
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-traversal-fields. WarmTransfer. https://warmtransfer.net/knowledge/claims/expressway-mra-setup-traversal-fields

BibTeX

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

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