Yealink T48S Skype For Business Edition User Manual page 242

User Guide for the T48S Skype for Business phone
You can also find the MAC address from the phone's bar code on the back of the phone.

Why can't I sign into Skype for Business Server on the phone?
Check your phone is properly connected to the switch or hub.

Ensure your login credentials are correct.

Ensure that DNS address is properly configured on the phone, or DHCP is configured to

provide DNS address as part of DHCP response.
Ensure that the phone can obtain the correct date and time through the NTP server.

Ensure that the phone has obtained the license.

Please check the Only Accept Trusted Certificates feature. If it is enabled, please disable it

and try to sign in. If you sign in successfully after you disable this feature, you need to
manually upload the certificate and then enable the Only Accept Trusted Certificates
feature to try again.
How to check if the application driver of the Yealink BToE Connector is installed on the
PC?
Do one of the following:
–
After installation, if the Yealink BToE Connector and the application driver run successfully,
the notification area of the system tray will prompt: Device driver software installed
successfully.
–
Do the following steps to check if the application driver is installed (take the Windows
2007 operating system as an example):
Click the Start button
1.
Click Control Panel->Device Manager.
2.
Double click System devices.
3.
Check if the driver Yealink BToE Enumerator is displayed.
4.
If Yealink BToE Enumerator is not displayed, reinstall the Yealink BToE Connector
application, and ensure that the application driver is installed during the installation
process.
How to cancel auto-start for the Yealink BToE connector？
Right-click
1.
Click Settings(P).
2.
240
.
in the system tray.