Microsoft Technical Bulletins

The latest updates for all the Microsoft Products you use every day.

Written by QuixTec LLC

My goal is to help your business by integrating processes that automate mundane tasks and simplify complex ones without breaking budgets.

Categories: Microsoft Teams

December 21, 2021

Blog Home

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

From Microsoft Corporation
Technical Bulletin MC297438 · Published Nov 10, 2021 · Last updated Dec 14, 2021

Action required by Feb 1, 2022

Message Summary

Updated December 14, 2021: We have updated the timing below to provide additional time to take action.

We’re making some changes to Direct Routing SIP interface.

On February 1st, 2022 (previously 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.

How this will affect your organization:

To provide the best-in-class encryption to our customers, we will be retiring Transport Layer Security (TLS) versions 1.0 and 1.1 beginning February 1st, 2022 (previously January 3rd, 2022) and will begin forcing TLS1.2 usage for the Direct Routing SIP interface.

  • To avoid any service impact, please make sure that your SBCs are configured to support TLS 1.2 and are able to connect using one of the following cipher suites:
    • TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 i.e. ECDHE-RSA-AES256-GCM-SHA384
    • TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 i.e. ECDHE-RSA-AES128-GCM-SHA256
    • TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 i.e. ECDHE-RSA-AES256-SHA384
    • TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 i.e. ECDHE-RSA-AES128-SHA256

What you need to do to prepare:

Review your SBCs and ensure they are configured to support TLS 1.2.

Learn more:

TECHNICAL BULLETIN END

QuixTec provides this and other technical bulletins ‘unaltered’ from Microsoft. As an authorized Microsoft Partner, we ensure that all our solutions we deliver to you include the latest Microsoft updates.

ABOUT US: QuixTec, LLC is a U.S. certified Veteran Owned, modern DevOps organization and Microsoft Partner that specializes in Microsoft SharePoint, Office 365 expertise & HTML5 technologies for small to enterprise-sized organizations. The founder, Richard, has 30 years of experience working with several notable companies that include World Vision, Expedia, Microsoft, Levi Strauss, NASA, Boeing Aerospace, Los Alamos National Laboratory, and the U.S. Air Force, to name a few.  QuixTec is in the Seattle area. Phone today for a free consultation and project estimate:

(425) 367-9025

LEARN MORE

SharePoint Development ServicesSharePoint DevelopmentCustom Software DevelopmentMicrosoft 365 ExpertsMicrosoft 365IT Staffing ServicesIT StaffingWordPress Development Services

You May Also Like…

Multitasking Panel for Meetings on iPad

Multitasking Panel for Meetings on iPad

Microsoft Teams, SharePoint Development Services From Microsoft CorporationTechnical Bulletin MC384329 · Published May 25, 2022 This feature will begin rollout in late May, and will complete rollout by early June.  How this will...

Collaborative Annotations on Presenter Shared Screen

Collaborative Annotations on Presenter Shared Screen

Microsoft Teams, Microsoft 365 Experts From Microsoft CorporationTechnical Bulletin MC383876 · Published May 23, 2022 Message Summary Collaborative Annotation helps you collaborate with others while screen sharing in Teams meetings. For...