Signaling device that informs users about missed calls and displays every cell phone call signal with blue running light, which only goes out when the signal is acknowledged.
Alerting system available as wired or wireless devices that provide light and vibration signals and consist of at least one transmitter and one receiver.
Telephone signal indicator designed for use by individuals who are hard of hearing. This device alerts the user to incoming telephone calls through a variety of signaling options including horn, bell, chime, or vibrating chime.
