Source note · Moving from Unified CM to Zoom Phone
Zoom marks an SBC failed after four consecutive OPTIONS keepalive failures, which takes 90 to 120 seconds in total to detect.
Checked 2026-09-25
- Vendor
- Zoom
- Product
- Zoom Phone
- Subsystem
- Failover routing
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-25
- Checked
- 2026-09-25
Sources
- BYOC-P or BYOP-P call processing — Zoom Communications · tier 2 current vendor documentation · Failover section, keepalive
Cite this note
APA
WarmTransfer. (2026, September 25). Moving from Unified CM to Zoom Phone: source note cucm-to-zoom-phone-options-detection-window. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-to-zoom-phone-options-detection-window
BibTeX
@misc{warmtransfer-claim-cucm-to-zoom-phone-options-detection-window,
title = {Moving from Unified CM to Zoom Phone: source note cucm-to-zoom-phone-options-detection-window},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-to-zoom-phone-options-detection-window},
note = {Source note cucm-to-zoom-phone-options-detection-window, checked 2026-09-25}
}