The Fanstel ST50 Amplified Corded Telephone features personal volume amplification settings, a large 7.4 square inch backlit LCD display, and Caller ID.

- Fanstel amplified corded speakerphone
- Sophisticated speakerphone that can digitally adjust frequency-specific volume levels so that any user, especially those exposed to harsh noisy environments, can comfortably and clearly hear a caller's voice
- It boasts highly flexible sound settings: incoming voices may be amplified by up to 50dB and 53dB amplification for full voice band
and high frequencies, respectively
- Extra amplification at higher frequencies is most effective for restoring the perception of many phonemic distinctions common in speech
- Personal volume amplification settings are automatically saved for later recall
- Caller names and numbers are easily visible on the large 7.4 square inch backlit LCD display
- Caller ID, call waiting caller ID
- 99# Caller ID memory
- Ultra large fonts for name and number display
- Voicemail waiting indicator (flashing LED)
- High performance, loud speakerphone with business-grade speaker
- Loud ringer (85dB at high setting)
- Visual ringer (bright ring flasher)
- Amplified receiver volume digital settings, 4 levels
- Frequency-Specific volume digital settings, 4 levels to compensate for severe frequency-specific hearing loss
- Maximum amplification: 50dB, voice band
- Maximum amplification: 53dB, 2000-3400Hz
- Frequency-specific amplification volume settings are saved and can be recalled automatically
- Big numeric buttons, button size 24 x 18(mm), 0.95 x 0.7 (inches)
- 3.5mm audio output jack
- Redial, up to 32 digits
- Dialing from Caller ID log
- 3 One-touch, programmable memory buttons
- Hold/mute/flash
- Pre-dialing support
- Basic telephone function maintained without power
- Memory retention without power
- Backlit LCD with adjustable viewing angle
- Contrast adjustable high contrast LCD display
- 3-Line ultra large font display
- Viewing area: 92 x 52(mm); 3.63 x 2.05(inches)
- Desk or wall mountable
- AC adapter included
- White