DUOPHONE 660 Feature Phone (430-955) Specifications Faxback Doc. # 8060 Typical Memory..................................................22 Memories Maximum Digits in Telephone Number.......................................32 Redial Memory.....................................................40 Digits Pulse Dialing Rate.....................................10 Pulses per Second Inter-Digit Pause..........................................800 Milliseconds Tone Dialing..................................................Standard DTMF Access Pause......................................................2 Seconds Display.....................................12 Digit Liquid Crystal Display Caller ID System Capacity.....................About 99 Single Message Calls 47 Multiple Message Calls with Names Battery........................................4 AA Size Alkaline Batteries Telephone Parameters Interface........................................................Loop Start Telephone Connection.......................Modular USOC Type RJ11C for Desk or RJ11W for Wall Ringer Type...........................Standard Bridged Ringer 20-60 Hz Sine or Square Wave 40-130 Volts Ring Signal Resistance...................................Greater Than 5 Mohms (on hook) Less Than 300 Ohms (off hook) Current............................................................20-80 mA (jlc-08/17/93)