Media bypass is controlled per SBC with the Set-CSOnlinePSTNGateway command and the -MediaBypass parameter set to true or false, and enabling it does not mean all media traffic stays within the corporate network.

Checked 2026-09-16

If you enable media bypass, it doesn't mean that all media traffic stays within the corporate network.
Vendor
Microsoft
Product
Teams Phone Direct Routing
Subsystem
media bypass
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-toggle. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-to-teams-phone-media-bypass-toggle

BibTeX

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

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