Yealink T48S Skype For Business Edition User Manual page 215

If BToE Pairing Mode is Manual, a six-digit pairing code displays. You should
-
enter the six-digit pairing code shown on the phone into the notification on
your computer.
(A six-digit pairing code displays on your phone)
(Enter the pairing code shown on the phone into the notification on your computer)
b) If your PC is not connected to the PC port on your phone using an Ethernet cable, do
the following:
Uncheck the Wired checkbox.
1.
Enter the IP address of the phone that you want to pair.
2.
Click OK.
3.
If BToE Pairing Mode is Auto, your phone will pair with Skype for Business
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Advanced Phone Features
213