Panasonic KX-TGM420 Operating Instructions Manual page 70

"Incoming call" setting is enabled (page 61).
1 Lift the handset and then press [TALK] or [
when the unit rings.
2 When you finish talking, press [OFF] or place the
handset on the base unit or charger.
Any key answer: You can answer the call by pressing
any dial key ([1] to [9], [*], or [#]).
Auto talk: You can answer calls simply by lifting the
handset (page 116).
Temporary handset ringer off: You can turn the
ringer off temporarily by pressing
Using the base unit
When a call is being received, the SP-PHONE indicator
( ) flashes rapidly.
Additionally, the message indicator flashes rapidly if
the base unit message indicator's "Incoming call"
setting is enabled (page 61).
1 Press [
70 | P a g e
] when the unit rings.
(left soft key).
]