User Manual

Troubleshooting
371
Time and Date Issues
Why doesn’t the Skype for Business phone display time and date
correctly?
Check if the Skype for Business phone is configured to obtain the time and date from the NTP
server automatically. If your phone is unable to access the NTP server, configure the time and
date manually.
Display Issues
Why is the LCD screen blank?
Do one of the following:
 Ensure that the Skype for Business phone is properly plugged into a functional AC outlet.
 Ensure that the Skype for Business phone is plugged into a socket controlled by a switch
that is on.
 If the Skype for Business phone is plugged into a power strip, try plugging it directly into a
wall outlet.
 If your phone is PoE powered, ensure that you are using a PoE-compliant switch or hub.
Directory Issues
What is the difference between a Skype for Business directory and a
local directory?
The Skype for Business directory on your phone displays all Skype for Business contacts on your
Skype for Business client. While a local directory is placed on the phone flash. When you sign
into different Skype for Business phones using the same account, the phone will display the
same Skype for Business contacts, while a local directory can only be used by a specific phone.
Audio Issues
How to increase or decrease the volume?
Press the volume key to increase or decrease the ringer volume when the Skype for Business
phone is idle or ringing, or to adjust the volume of engaged audio device (handset,
speakerphone or headset) when there is an active call in progress.