Telephone Flash Button. How to turn on the flashlight on iPhone 12 "Flash" is a method to communicate back to the telephone central exchange from an analog (normal) telephone set In European networks an "R" button is used in combination with touch tone digits to select various call handling functions
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The same thing it does on a regular house phone, switches between the calls, I believe Manuals / Panasonic / Communications / Telephone Panasonic KX-TG2650N operating instructions Flash Button,
"Flash" is a method to communicate back to the telephone central exchange from an analog (normal) telephone set It is used for various functions, including calling the attendant, call waiting, call transfer. Caller A presses the FLASH button on the analog phone and waits for a dial tone
Flash button change to blind transfer Asterisk Support Asterisk. If your phone doesn't have a "Flash" button, you can usually engage the "Flash" feature by holding down the receiver hook for a few seconds and then releasing it FLASH BUTTON The FLASH button sends a signal to the telephone service provider which tells the office that you wish to use a special feature
Device, flash, mobile, phone, smartphone icon. Learn more about Flash Button, Selecting the flash time "Flash" is telephone speak than means the same thing as to quickly press the cradle buttons where you normally hang up the phone handset