When two or more SBCs in one route are considered healthy and equal, Direct Routing applies a Fisher-Yates shuffle to distribute the calls between them.

Checked 2026-09-21

Vendor
Microsoft
Product
Teams Phone
Subsystem
direct-routing-monitoring
Deployment
multi-tenant
Region
not restricted
Release range
current as of 2026-09-21
Checked
2026-09-21

Sources

Cite this note

APA

WarmTransfer. (2026, September 21). CUCM to Teams Phone migration: source note cucm-to-teams-phone-monitor-fisher-yates. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-to-teams-phone-monitor-fisher-yates

BibTeX

@misc{warmtransfer-claim-cucm-to-teams-phone-monitor-fisher-yates,
  title  = {CUCM to Teams Phone migration: source note cucm-to-teams-phone-monitor-fisher-yates},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-to-teams-phone-monitor-fisher-yates},
  note   = {Source note cucm-to-teams-phone-monitor-fisher-yates, checked 2026-09-21}
}

Read in context