Special keys

FLASH

The FLASH key serves several purposes:

Getting a fresh dial tone without replacing the handset — When connected to an outside line, press FLASH to disconnect automatically and receive fresh outside dial tone. (See also “RELEASE,” below.)
Sending a flash hook signal — If operating behind Centrex (a special service your phone company may offer; see your System Administrator for further details) or a PBX, press FLASH to transmit a flash hook signal automatically to either the phone company’s central office or the host PBX. Either may use this signal to provide you with additional features.
Toggling between calls — If you hear a call-waiting tone while on a call, press FLASH to toggle between the two calls.

REDIAL

Note:

If using an ESI Cordless Handset, you must assign this function to a programmable feature key.

The REDIAL key allows you to automatically call a stored name and number as shown below:

To . . .	Press REDIAL . . .
Redial the last number dialed	When your station is idle . . . or . . . After first lifting the handset or pressing SPEAKER
Automatically respond to a message	During message playback with Caller ID

RELEASE

The RELEASE key serves several purposes:

If pressed when connected to a call through the handset, it disconnects the call and gives you internal dial tone.
If pressed when you’re connected to a call via the speakerphone, it disconnects the call.
If pressed during call waiting, it drops the current call and automatically connects to the waiting call.

Notes:

The hookswitch also acts as a combination FLASH/RELEASE key (and is the only way to perform these functions on a 12-Key Feature Phone, which has neither a FLASH key nor a RELEASE key).
To send a flash hook signal, quickly press the hookswitch once.
To release (disconnect), hold down the hookswitch for one second.

To hang up when using an ESI Cordless Handset, press TALK or put the Handset in its charging cradle.