Cisco's Preferred Architecture advises that H.323 should be turned off as a security best practice, while acknowledging business reasons may prevent it.
Checked 2026-09-25
- Vendor
- Cisco
- Product
- Cisco Expressway
- Subsystem
- H.323
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Collaboration 14
- Checked
- 2026-09-25
Sources
- Preferred Architecture for Cisco Collaboration 14 Enterprise On-Premises Deployments, CVD - Collaboration Edge — Cisco · tier 2 current vendor documentation · Collaboration Edge > security / H.323 guidance
Cite this note
APA
WarmTransfer. (2026, September 25). Setting up business-to-business calling on Cisco Expressway: source note expressway-b2b-setup-pa-h323-off. WarmTransfer. https://warmtransfer.net/knowledge/claims/expressway-b2b-setup-pa-h323-off
BibTeX
@misc{warmtransfer-claim-expressway-b2b-setup-pa-h323-off,
title = {Setting up business-to-business calling on Cisco Expressway: source note expressway-b2b-setup-pa-h323-off},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/expressway-b2b-setup-pa-h323-off},
note = {Source note expressway-b2b-setup-pa-h323-off, checked 2026-09-25}
}