Yealink Yealink SIP-T48G, Administrator'S Manual, Page: 81 / 319

Configuring Basic Features
69
To configure backlight via phone user interface (take SIP-T22P IP phones for example):
1. Press Menu->Settings->Basic Settings->Backlight.
2. Press or , or the Switch soft key to select the desired value from the
Backlight Time field.
3. Press the Save soft key to accept the change.
To configure the backlight via web user interface (take SIP-T48G IP phones for example):
1. Click on Settings->Preference.
2. Select the desired value from the pull-down list of Backlight Inactive Level.
3. Select the desired value from the pull-down list of Backlight Active Level.
4. Select the desired value from the pull-down list of Backlight Time(seconds).
5. Click Confirm to accept the change.
To configure the backlight via phone user interface (take SIP-T48G IP phones for
example):
1. Tap ->Basic->Display->Backlight.
2. Select the desired level from the pull-down list of Backlight Active Level.
3. Select the desired value from the pull-down list of Backlight Inactive Level.
4. Select the desired time from the pull-down list of Backlight Time.
5. Tap to accept the change or tap to cancel.
Lync users are authenticated against Microsoft Active Directory Domain Service. The
following two sign-in methods are supported on the phone:

User Credentials: This method uses the user’s credentials to sign in to Lync server. It
is available on the phone user interface and web user interface.

PIN Authentication: This method uses the user’s phone number (or extension) and