The inbound B2B path therefore needs a rule on Expressway-E sending the organisation's own domain to the traversal zone and a rule on Expressway-C sending that domain to the Unified CM neighbor zone.
inferred · Checked 2026-09-25
- Vendor
- Cisco
- Product
- Cisco Expressway
- Subsystem
- search rules
- Deployment
- on-premises
- Region
- not restricted
- Release range
- X14.0 onward
- Status
- inferred
- Checked
- 2026-09-25
Sources
- Configure Business to Business Audio/Video Calls through Expressway — Cisco Systems · tier 2 current vendor documentation · Configure > Expressway-C > Neighbor Zone to CUCM; Expressway-E > Traversal Zone
Cite this note
APA
WarmTransfer. (2026, September 25). Setting up business-to-business calling on Cisco Expressway: source note expressway-b2b-setup-inbound-rule-inference. WarmTransfer. https://warmtransfer.net/knowledge/claims/expressway-b2b-setup-inbound-rule-inference
BibTeX
@misc{warmtransfer-claim-expressway-b2b-setup-inbound-rule-inference,
title = {Setting up business-to-business calling on Cisco Expressway: source note expressway-b2b-setup-inbound-rule-inference},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/expressway-b2b-setup-inbound-rule-inference},
note = {Source note expressway-b2b-setup-inbound-rule-inference, checked 2026-09-25}
}