MC297438 – (Updated) TLS1.2 enforcement for Direct Routing SIP interface

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check before: 2022-01-03

Product:

Exchange, Microsoft 365 admin center, Office 365 general, OneDrive, SharePoint, Teams

Platform:

Mac, Online, US Instances, Web, World tenant

Status:

Change type:

Admin impact, Retirement, Updated message

Links:

MC240160
MC218794
(MC128929)

Details:

Updated November 12, 2021: We have updated the content below for clarity. Thank you for your feedback.
We're making some changes to Direct Routing SIP interface.
On January 3rd 2022, to provide the best-in-class encryption to our customers, we will begin retiring Transport Layer Security (TLS) versions 1.0 and 1.1 and begin obligating TLS1.2 usage for the Direct Routing SIP interface.
The move to TLS 1.2 is to ensure that our service is secure by default and in alignment with the rest of Microsoft 365 services as previously communicated (MC126199 in Dec 2017, MC128929 in Feb 2018, MC186827 in July 2019, MC218794 in July 2020, MC240160 in February 2021, and MC292797 in October 2021).
Note: If your organization has already taken steps to migrate from TLS 1.0 and 1.1, you can safely disregard this message.

Change Category:
XXXXXXX ...

Scope:
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Release Phase:

Created:
2021-11-11

updated:
2021-11-13

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