1.8.8 Turning on the Background Music (BGM)
You can listen to the background music through your telephone speaker while on-hook.
An external music source, such as a radio, must be connected.
If your extension
becomes busy (off-hook, making or receiving a call etc.), the music stops
temporarily. When you go back on-hook, the music starts again.
To select and set/cancel
<For users of KX-TDA100/KX-TDA200/KX-TDA600>