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)
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.