Yealink T48G-SKYPE FOR BUSINESS EDITION User Manual page 227

Right-click
1.
A logon dialog will pop up on your PC to prompt you to enter the logon password.
Enter the password in the Password field.
2.
Click OK.
3.
The phone will sign in the same account as Skype for Business client automatically.
c) If you already signed into the Skype for Business client and the connected phone with the
same account before paring:
Your phone can interoperate with Skype for Business client for third-party call control
directly.
If the Skype for Business Server is configured to forcibly lock the phone. You need to configure
an unlock PIN at the initial sign-in. For more information, refer to
on the system tray, and then select Sign in by Lync(L).
Better Together over Ethernet
Phone Lock on page 56.
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