VTech 6042 DECT 6.0 Two-Handset Cordless Phone System with Digital Answering Device and Caller ID Advanced DECT 6.0 cordless phone system with built-in answering machine and 2 handsets Will not interfere with wireless networks such as 802.11b or 802.11g WiFi Blue backlit keypad It has 50-number phonebook directory It has 1-year limited warranty