FailoverTimeSeconds (default 10) sends an outbound call that the gateway has not answered within that time to the next available trunk, and drops it if there is none; Microsoft warns this can drop calls unnecessarily on slow networks.
Checked 2026-09-24
- Vendor
- Microsoft
- Product
- Teams Phone Direct Routing
- Subsystem
- SBC settings
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- Connect your Session Border Controller (SBC) to Direct Routing — Microsoft · tier 2 current vendor documentation · SBC settings table, FailoverTimeSeconds row
Cite this note
APA
WarmTransfer. (2026, September 24). Building a hybrid Unified CM and Teams Phone environment for a phased migration: source note cucm-teams-hybrid-build-sbc-failover-time. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-teams-hybrid-build-sbc-failover-time
BibTeX
@misc{warmtransfer-claim-cucm-teams-hybrid-build-sbc-failover-time,
title = {Building a hybrid Unified CM and Teams Phone environment for a phased migration: source note cucm-teams-hybrid-build-sbc-failover-time},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-teams-hybrid-build-sbc-failover-time},
note = {Source note cucm-teams-hybrid-build-sbc-failover-time, checked 2026-09-24}
}