We recognize that the upgrade of 3PIP devices to SIP Gateway can be lengthy, and so we highly encourage beginning the process as soon as possible.

SIP Gateway is the recommended approach for customers to continue using 3PIP phones to connect and work with Teams. You have incompatible 3PIP devices connecting to Teams on J– your devices will stop working, you must replace them with Teams phone devices or compatible Teams SIP devices for continued scenario support.You have compatible 3PIP devices connecting to Teams, but not through Teams SIP Gateway on J– your phones will stop working, unless you take steps described below to upgrade your devices to connect to Teams through SIP Gateway.You have compatible 3PIP devices connecting to Teams via SIP Gateway on J– no action needed on your part, your phones will continue to work via SIP Gateway.The following are a few scenarios that can help you chart the course of action for your organization:

We encourage you to make necessary updates (detailed later in this blog) as soon as possible because Skype for Business Online will be permanently turned off on July 31, 2023. To help protect the investment that you have made in Skype for Business Online phones (3PIP phones) and help you upgrade to Teams, we now offer a solution through SIP Gateway to enable these devices to securely connect and function as Microsoft Teams endpoints. Microsoft retired Skype for Business Online (SfBO) in July 2021.

Skype for business set up