Panasonic KX-T7565 - Manual (Page 125)

Operation
User Manual 125
2.7.10 Turning on the Background Music (BGM)
To set/cancel
You can listen to background music through your telephone speaker while on-
hook. To utilise this feature, an external music source, such as a radio, must be
connected to the system beforehand.
Press "BGM" or press HOLD or TRANSFER
(or dial 1).*
OR
PT
BGM
While on-hook
HOLD
or
TRANSFER
*) HOLD or TRANSFER: [SA], 1: Others
(or ) 1