Northwestern Bell 35818-M1 5.8 GHz Analog Cordless Phone with Dual Handsets and Answering System (Pearl) 5.8 GHz analog signal, 75-channel autoscan Expandable to 4 handsets, 2 included; remote charger base 13-minute digital answering system Caller ID/call waiting, 40-call memory, 20-number phonebook Digital voice encryption system; hearing aid compatible