by Clarity

Please Note: Amplified phones are designed for use on ANALOG phone lines only. Do not connect an amplified phone to a DIGITAL phone line. Digital phone technology can damage the amplified phone and void both the manufacturer's warranty and HSDC's 30-day return policy. For more information, click here.
• The C4220 is designed for use on home (analog) phone lines, it should not be used on digital (office) phone systems
• Separate volume controls and 4 tone settings on the handset provide up to 50 decibels of amplification with Digital Clarity Power™ technology for improved understanding
• Amplfied speakerphone in the handset with 4 tone settings
• High contrast LCD Caller ID display in the handset
• 5.8 MHz signal for clear reception
• Hearing aid compatible - for increased clarity when using your hearing aid or CI telecoil (aka: telephone switch, t-coil, t-switch)
• One year warranty
• For more information, click here to read the User Manual (PDF format)

Set-up Tips:

• All amplified phones are sensitive to power surges. Protect the phone by plugging it and the phone line into a surge suppressor. A battery back-up unit (UPS) with surge suppressor will protect the phone and keep it running temporarily during any power outage.
• If you are using a DSL phone line, a second high frequency filter may need to be attached to the phone line to remove the background noise caused by the modem.