Send out signal from PBX to phones to indicate the presence of new messages. Vibrations, flashing LEDs and special dial-tones are instances of commonly used MWIs on the phone.
Message Waiting Indication (MWI)
Send out signal from PBX to phones to indicate the presence of new messages. Vibrations, flashing LEDs and special dial-tones are instances of commonly used MWIs on the phone.
