Yealink SIP-T48S User Manual page 217

The valid channel ranges from 0 to 30.
Tap the Save soft key to accept the change or
8.
Multicast paging key is configurable via web user interface at the path Dsskey->Line Key.
To configure a paging list key via phone user interface:
Tap More.
1.
Tap the desired line key.
2.
Tap the gray box of the Type field, and then select Key Event from the pull-down list.
3.
Tap the gray box of the Key Type field, and then select Paging List from the pull-down
4.
list.
(Optional.) Enter the string that will appear on the touch screen in the Label field.
5.
Tap the Save soft key to accept the change or
6.
Paging list key is configurable via web user interface at the path Dsskey->Line Key.
To configure paging list via phone user interface:
Tap the paging list key when the phone is idle.
1.
Advanced Phone Features
to cancel.
to cancel.
207