How to answer calls from a Favorite contact on a Panasonic Telephone KX-TGU4, KX-TGU1 series

The Favorites key feature allows you to register up to three essential contacts. When the favorites operation setting is activated, the indicator on the Favorites key flashes upon receiving an incoming call from a contact listed as a favorite.
To Answer a call
When the unit rings and the favorites key flashes, lift the handset and then press one of the following buttons
►the [Favorites Key]
►the [TALK Image ] button
►the [SP-PHONE] button
When you are finish talking, press the [OFF] button.