Source note · Troubleshooting Webex Calling survivability failover
External calls in Survivability mode, inbound and outbound, depend on a local PSTN circuit or a SIP trunk configured on the Survivability Gateway; intrasite extension calls between registered endpoints route automatically without specific routing configuration.
Checked 2026-09-30
- Vendor
- Cisco
- Product
- Webex Calling Site Survivability
- Subsystem
- PSTN
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-30
- Checked
- 2026-09-30
Sources
- Site survivability for Webex Calling — Cisco Systems, Inc. (help.webex.com) · tier 2 current vendor documentation · Supported features and components: Intrasite Extension Calling; Intersite and PSTN Calling
Cite this note
APA
WarmTransfer. (2026, September 30). Troubleshooting Webex Calling survivability failover: source note webex-calling-survivability-troubleshooting-pstn-trunk. WarmTransfer. https://warmtransfer.net/knowledge/claims/webex-calling-survivability-troubleshooting-pstn-trunk
BibTeX
@misc{warmtransfer-claim-webex-calling-survivability-troubleshooting-pstn-trunk,
title = {Troubleshooting Webex Calling survivability failover: source note webex-calling-survivability-troubleshooting-pstn-trunk},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/webex-calling-survivability-troubleshooting-pstn-trunk},
note = {Source note webex-calling-survivability-troubleshooting-pstn-trunk, checked 2026-09-30}
}