To move from non-media bypass to media bypass while confirming functionality first, Microsoft documents creating a second trunk with a different FQDN pointing at the same SBC, with different TLS SIP signalling ports, a separate Online Voice Routing policy, and that policy assigned only to identified pilot users.

Checked 2026-09-16

If you're migrating to media bypass from non-media bypass and want to confirm functionality before migrating all usage to media bypass, you can create a separate trunk and separate Online Voice Routing policy.
Vendor
Microsoft
Product
Teams Phone Direct Routing
Subsystem
migration technique
Deployment
multi-tenant
Region
not restricted
Release range
current as of 2026-09-16
Checked
2026-09-16

Sources

Cite this note

APA

WarmTransfer. (2026, September 16). CUCM to Teams Phone migration: source note cucm-to-teams-phone-media-bypass-staged-migration. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-to-teams-phone-media-bypass-staged-migration

BibTeX

@misc{warmtransfer-claim-cucm-to-teams-phone-media-bypass-staged-migration,
  title  = {CUCM to Teams Phone migration: source note cucm-to-teams-phone-media-bypass-staged-migration},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/claims/cucm-to-teams-phone-media-bypass-staged-migration},
  note   = {Source note cucm-to-teams-phone-media-bypass-staged-migration, checked 2026-09-16}
}

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