Amplified Cordless Telephone - Comparison Chart

TELEPHONE MODELS [ INSTRUCTIONS	AMPLI 250	C420	C4205	C4220	C4230	D603	D613	D613C	HC PHONE4	HC PHONE7
Incoming Voice Amplification	n 50 dB	n 30 dB	n 40 dB	n 50 dB	n 50 dB	n 30 dB	n 30 dB	n 30 dB	n 30 dB	n 30 dB
Outgoing Voice Amplification
Frequency	900 MHz	900 MHz	2.4 GHz	5.6 GHz	5.6 GHz	6.0 GHz	6.0 GHz	6.0 GHz	2.4 GHz	5.8 GHz
Tone Control	n		n	n	n
Volume Control	n	n	n	n	n	n	n	n		n
Ring Flasher	n	n	n	n	n
Loud Ringer	n	n	n	n	n	n	n	n
Large Buttons		n		n	n	n	n	n
Backlit Keypad	n	n	n	n	n					n
Amplify/Boost Button	n	n	n	n	n	n	n	n
Amplify Override Switch	n	n	n
T-Coil Compatible Handset	n	n	n	n	n	n	n	n	n	n
Memory Dial Buttons	n 9	n 13	n	n	n	n 9	n 9	n 9		n 9
Line Powered
AC Power Adapter	n	n	n	n	n	n	n	n		n
Battery Backup	n	n	n
Desk/Wall Mount		n	n							n
Headset Audio Jack	n	n	n	n	n				n	n
Caller ID	n	n		n	n	n	n	n	n	n
Answering Machine					n		n	n	n	n
Built-in Speakerphone				n	n	n	n	n
Warranty (in years)	1	1	1	1	1	1	1	1	1	1
TELEPHONE MODELS [	AMPLI 250	C420	C4205	C4220	C4230	D603	D613	D613C	HC PHONE4	HC PHONE7