Source note · Remote site survivability patterns
The Enhanced Survivability Node routes calls only within its site; every other call goes to the PSTN, so each ESN site needs its own Local Gateway and a local DNS server.
Checked 2026-09-24
- Vendor
- Cisco
- Product
- Webex Calling Dedicated Instance
- Subsystem
- enhanced-survivability-node
- Deployment
- dedicated-instance
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- Get Started with Enhanced Survivability — Cisco Webex · tier 2 current vendor documentation · Prerequisites / Deployment considerations
Cite this note
APA
WarmTransfer. (2026, September 24). Remote site survivability patterns: source note survivability-remote-site-esn-local-gateway. WarmTransfer. https://warmtransfer.net/knowledge/claims/survivability-remote-site-esn-local-gateway
BibTeX
@misc{warmtransfer-claim-survivability-remote-site-esn-local-gateway,
title = {Remote site survivability patterns: source note survivability-remote-site-esn-local-gateway},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/survivability-remote-site-esn-local-gateway},
note = {Source note survivability-remote-site-esn-local-gateway, checked 2026-09-24}
}