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+--- Forum: T4x Series (/forumdisplay.php?fid=31)
+--- Thread: Change to authentication on SfB (/showthread.php?tid=42780)
Change to authentication on SfB - helios.comms - 05-17-2019 10:54 AM
Do we need to do anything on our Yealink T42G phones re the following message from Microsoft about changes to authentication?
![[Image: XWScyC9.png]](https://i.imgur.com/XWScyC9.png)
RE: Change to authentication on SfB - Mike_Yealink - 05-20-2019 03:22 AM
HI
Refer to the screenshot uploaded in the attachment and upload the certificate at the designated location.
RE: Change to authentication on SfB - helios.comms - 05-21-2019 07:45 PM
(05-20-2019 03:22 AM)Mike_Yealink Wrote: HI
Refer to the screenshot uploaded in the attachment and upload the certificate at the designated location.
Sorry I don't understand what this means. We already have SfB licenses on the phones. Do we need new ones?