For Local Media Optimization, the external internet IPs that Teams clients use to reach Microsoft 365 must be added for every site with LMO users using New-CsTenantTrustedIPAddress, with mask 32 for single IPv4 addresses, 128 for IPv6, and both families added if Microsoft 365 sees both.
Checked 2026-09-30
- Vendor
- Microsoft
- Product
- Microsoft Teams Phone Direct Routing
- Subsystem
- network topology
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-30
- Checked
- 2026-09-30
Sources
- Configure Local Media Optimization for Direct Routing — Microsoft · tier 2 current vendor documentation · Manage external trusted IP addresses
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-lmo-trusted-ip. WarmTransfer. https://warmtransfer.net/knowledge/claims/teams-media-bypass-setup-lmo-trusted-ip
BibTeX
@misc{warmtransfer-claim-teams-media-bypass-setup-lmo-trusted-ip,
title = {Setting up media bypass and local media optimization for Teams Direct Routing: source note teams-media-bypass-setup-lmo-trusted-ip},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/teams-media-bypass-setup-lmo-trusted-ip},
note = {Source note teams-media-bypass-setup-lmo-trusted-ip, checked 2026-09-30}
}