Panasonic KX-TG2563F - Manual (Page 51)

Special Features
51
Advanced Operation
Automatic Security Code Setting
Each time you place the handset on the base unit, the unit automatically
selects one of more than a million security codes. These codes help
prevent the unauthorized use of your telephone line by another cordless
telephone user.
(CALL!WAIT/FLASH)
(TONE) (REDIAL/PAUSE)
(FUNCTION/EXIT/CH)
(TONE)
(FLASH/CALL!WAIT/VOICEÒMAIL)
(REDIAL/PAUSE)
, , FWD/EDIT