Participants who attempt to join any Skype for Business meeting via dial-in numbers provided by a third-party ACP service will no longer be connected to the Skype for Business meeting. When the program concludes, the integration of Skype for Business with third-party audio conferencing providers will stop working and the following changes will be observed on that date (July 31, 2021): The end of life program will conclude on July 31, 2021. Microsoft has announced the start of the end of life program for the integration of Skype for Business with third-party audio conferencing providers (ACPs). Remember that a successful upgrade aligns technical and user readiness, so be sure to leverage our upgrade guidance as you navigate your journey to Teams. If you want to upgrade your organization to Teams yourself, we strongly recommend that you begin planning your upgrade path today.

If you haven't upgraded your Skype for Business Online users yet, they will be automatically scheduled for an assisted upgrade.

Skype for Business Online was retired on July 31, 2021.

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