Uniden WDECT 2345+1 - Manual (Page 5)

Terminology
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Standby Mode - talk/ flash
Talk Mode - talk/ flash
The handset maybe sitting on or off the cradle, but is NOT in use. or
has not been pressed. The corded base handset is on the base and
on the base has not been pressed. No dial tone is present.
The handset is off the cradle and or has been pressed, or pick
up the corded base handset and on the base is pressed, enabling a dial
tone.
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