Microsoft recommends not exposing the SBC public IP to external clients and instead opening it only to the Microsoft cloud so external users' bypassed media is relayed by Teams Transport Relays; letting external clients reach the SBC public IP directly is listed as not recommended.
Checked 2026-09-30
- Vendor
- Microsoft
- Product
- Microsoft Teams Phone Direct Routing
- Subsystem
- media path
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-30
- Checked
- 2026-09-30
Sources
- Plan for media bypass with Direct Routing — Microsoft · tier 2 current vendor documentation · Call flow if the user doesn't have access to the public IP address of the SBC; Call flow if a user is outside the network and has access to the public IP of the SBC, Note
Cite this note
APA
WarmTransfer. (2026, September 30). Setting up media bypass and local media optimization for Teams Direct Routing: source note teams-media-bypass-setup-mb-external-relay. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-media-bypass-setup-mb-external-relay
BibTeX
@misc{warmtransfer-claim-teams-media-bypass-setup-mb-external-relay,
title = {Setting up media bypass and local media optimization for Teams Direct Routing: source note teams-media-bypass-setup-mb-external-relay},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/teams-media-bypass-setup-mb-external-relay},
note = {Source note teams-media-bypass-setup-mb-external-relay, checked 2026-09-30}
}