Yealink T48G-SKYPE FOR BUSINESS EDITION User Manual page 243

Why doesn't the phone display the Calendar menu?
Ensure that your phone has signed in successfully.

Why doesn't the Skype conference, appointment, meeting or event set up in outlook
display on the Calendar menu?
Ensure that your sign into the phone using

method.
Why can't I get a dial tone?
Check for any loose connections and that the phone has been installed properly. For the

installation instructions, refer to
Switch between the Handset, Headset (if present) or Hands-Free Speakerphone to check

whether the dial tone is present for one of the audio modes.
If the dial tone exists on another audio mode, connect a different handset or headset to
isolate the problem.
Why doesn't the phone ring?
Check the ringer volume on the phone. To adjust the ringer volume setting, press the Volume
key when the phone is on-hook and idle. For more information, refer to
Why can't I receive calls?
Check that whether your status is DND mode, if it is, you should reset status. Refer to

Changing Presence Status
Check that whether call forward is disabled on the phone. Refer to

134.
Why doesn't my handset work?
Check that the headset cord is fully connected to the headset jack on the phone. Refer to

Phone Installation on page 14.
Check that the headset volume is adjusted to an appropriate level. Refer to

page 59.
Why does the phone play a tone when there is a call on hold? How to disable it?
When there is a call on hold, the phone will play a hold tone every 30 seconds. Call hold tone is
enabled by default. Call hold tone and the interval of playing a hold tone are configurable via
web user interface only.
To configure call hold tone and call hold tone delay via web user interface:
Click on Features->General Information.
1.
User Sign-in,
Phone Installation on page 14.
on page 26.
Troubleshooting
Web Sign-in or Sign in via
Volume on page 59.
Call Forward on page
Volume on
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