Cortelco 3719 Owner's Instruction Manual page 13

Memory Key
Directory Key
Review Keys
Network Service Key
Handset Hookswitch
7-10-11 Key
T F
ELEPHONE EATURES
Flash Key
Mute Key
Hold LED
LCD Display
New Call LED
New Message LED
Dial Key
Ringer Vol. Control
Volume Key (Handset)
Delete Key
Volume Control
(Handsfree)
Voice Mail
Dial Pad
Headset Jack
Speakerphone
Hold Key
Redial/Pause Key
Speakerphone LED
10