Forum Discussion

Copper Contributor

Jan 13, 2021

MS Teams roaming

Hi How does MS teams server know which country user is currently in when receiving a call on a landline number. For example, the user has UK landline number on teams account and if the user receives...

Roaming Profile

teams

saroshjabran

Copper Contributor

Jan 15, 2021

LinusCansby

Thanks for reply. So if I understand correctly, the call is routed based on the location of the user and how the admin has configured the service. But my question is around how the Teams client/server determine the location of the user to begin with ? The public IP of the user OR which Teams server the login request is forwarded to (because of DNS) and something else ?

Thanks

LinusCansby

MVP

Jan 16, 2021

Teams client will connect to different URLs using DNS to connect to the closest data center, ex. using teams.microsoft.com. But it will always connect to your home tenant, the data center were your data is stored.

For media (audio/video) Teams will use Anycast IP (13.107.8.2) to connect to the closest media relay. But the media when you dial a PSTN phone number will always go out via the SBC that your admin setup.