Configure network settings - Location-Based Routing

Publisher

Microsoft

URL

https://learn.microsoft.com/en-us/microsoftteams/location-based-routing-configure-network-settings

Published

2026-09-18

Updated

unknown

Accessed

2026-09-25

HTTP status

200

License

Microsoft Learn terms of use; no-redistribution; short excerpts and locators only

Source notes citing this source

• LBR supports both IPv4 and IPv6 subnets and checks for an IPv6 match first, falling back to IPv4 only if no IPv6 address is present. in context
• For Direct Routing, Microsoft's best practice for LBR is a separate network site for each location with unique PSTN connectivity, and a site not enabled for LBR can be created so LBR-enabled users can make PSTN calls when they roam there. in context
• Each network subnet must be associated with one specific network site; a site can have multiple subnets, but a subnet cannot belong to multiple sites. in context
• LBR first matches the endpoint's external IP against the tenant's trusted IP list; only if it matches does it look up the internal subnet, and otherwise the endpoint is classified as being at an unknown location. in context
• The LBR network settings article says that for Direct Routing, any PSTN call to or from an LBR-enabled user whose external IP matches no trusted IP (an unknown location) is blocked, without mentioning the GatewayLbrEnabledUserOverride exception documented in the planning article and cmdlet reference. disputed in context

Cite this source record

APA

WarmTransfer. (2026, September 18). Configure network settings - Location-Based Routing. WarmTransfer. https://warmtransfer.net/knowledge/sources/ms-learn-lbr-configure-network

BibTeX

@misc{warmtransfer-ms-learn-lbr-configure-network,
  title  = {Configure network settings - Location-Based Routing},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/ms-learn-lbr-configure-network},
  note   = {Microsoft, accessed 2026-09-25}
}