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sip-all FQDNs will not be supported starting March 1st, 2022

Aktualisiert: 10. Jan. 2022

Microsoft making some changes to Teams Direct Routing

On March 1, 2022, Microsoft will be removing support for and 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 ( and for any classification or ACL rules and discontinue using the sip-all FQDN when configuring Session Border Controls for the Direct Routing.

Learn more:

Source: Microsoft MC307310

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