We’re making some changes to Teams Direct Routing. On March 1, 2022, we will be removing support for sip-all.pstnhub.microsoft.com and sip-all.pstnhub.gov.teams.microsoft.us FQDNs from Direct Routing configuration.
Note: If you aren’t using Session Border Controllers you can safely disregard this message.
How this will affect your organization
When this change is implemented, if no actions taken and sip-all FQDN is used, users will no longer be able to make or receive calls via Direct Routing.
What you need to do to prepare
Customers will need to use the recommended subnets (220.127.116.11/14 and 18.104.22.168/14) for any classification or ACL rules and discontinue using the sip-all FQDN when configuring Session Border Controls for the Direct Routing.
Message ID: MC307310
Published: 21 December 2021
Updated: 14 January 2022
#UserImpact #AdminImpact #Retirement #Teams #UpdatedMessage
Plan For Change