Visual Alert

Provide a flashing light in place of, or in addition to, the ringing sound.
Various models of flashing strobe devices that alert deaf or hard-of-hearing users when the phone rings. One device is a white, rectangular box with a clear LED strobe. Another is a red triangle strobe. The third and fourth models are base stands for smartphones that feature built-in cradles for the devices and built-in flashing light displays on the base.

Flashing telephone signaler is a visual alert system to notify deaf or hard of hearing users when they have an incoming phone call.

Silver triangular device with a mobile phone placed on it. The mobile phone screen displays a call coming in and a green light flashes below; the black iBell2 sits next to the silver model.

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.

A black alarm clock with a lisa receiver on top, two silver RF repeaters with black antennas, a silver portable receiver, a table-top blinking lamp, and an analog clock with a bright light attached to the right.

Alerting system available as wired or wireless devices that provide light and vibration signals and consist of at least one transmitter and one receiver.

A medium-sized, white, and square device with a large built-in speaker face.

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.

White electrical box with screws on the corners and a raised horizontal area with the word phone on it.

A loud, attention-getting electronic ringer with strobe light designed for use by individuals who are deaf or hard of hearing that is suitable for noisy locations or outdoor areas.

Screenshot of an iPhone displaying "Doorbell is Ringing" alert, with a large blue bell icon against a white background. Beneath, there is a blue button that reads "Confirm" in white font.

Sound alert app designed for use by individuals who are deaf, or hard of hearing. The app can detect a wide range of sounds, such as smoke alarms, doorbells, babies crying, car horns, and more.

Unlocked iPhone resting upright on blue docking station.

Desktop signaling device for landline and mobile phones, notifying you when you have incoming calls by phone, Skype, FaceTime and text messages. The device is extra loud and also features a flashing-light visual alert.

Slim rectangular device with green screen displaying time and other controls along bottom of screen.

Wireless alert system that provides both audio, visual, and vibration alerts. It alerts you to all the daily sounds in your home with add-on transmitters such as the alarm clock, door, phone, baby, and alarm sound from your audio alarms, warnings from your motion detectors and storm warning from your NOAA radio and more.

Rectangular device with outlet and connector.

An alerting device which provides a visual signal that allows people who have a hearing impairment or who are deaf to see that the telephone is ringing. The device is connected to the telephone and any incandescent lamp, (not fluorescent) lamp, and switches the lamp on and off in time with the telephone ring.

orange light bulb

Rotating mirror lights allow reliable signaling even in a noise-filled environment.