Source note · Zoom Phone routing and PSTN connectivity
During survivability, emergency calls present a single site-level ELIN, which must be a BYOC number terminating on the failover SBC's PSTN trunk, and ZPLS routes emergency callbacks to the original caller for up to 2 hours.
Checked 2026-09-24
- Vendor
- Zoom
- Product
- Zoom Phone Local Survivability
- Subsystem
- emergency-calling
- Deployment
- hybrid
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- PSTN Integration Considerations | Zoom Technical Library — Zoom Communications · tier 2 current vendor documentation · ELIN Considerations
Cite this note
APA
WarmTransfer. (2026, September 24). Zoom Phone routing and PSTN connectivity: source note zoom-phone-routing-zpls-elin. WarmTransfer. https://warmtransfer.net/knowledge/claims/zoom-phone-routing-zpls-elin
BibTeX
@misc{warmtransfer-claim-zoom-phone-routing-zpls-elin,
title = {Zoom Phone routing and PSTN connectivity: source note zoom-phone-routing-zpls-elin},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/zoom-phone-routing-zpls-elin},
note = {Source note zoom-phone-routing-zpls-elin, checked 2026-09-24}
}