Caller ID System 320 (430-0957) Specifications Faxback Doc. # 7022 Dimensions:...................................1 2/3 x 3 7/8 x 3 1/4" (HWD) Weight:.............................................................66 oz. Power Requirements:...........................6V DC (4 AAA 1.5V Batteries) Memory Capacity:.............................99 Calls with Incoming Number ....................................Only Or 75 Calls with Name and Number. OPERATING PARAMETERS The following information is supplied to help you answer questions from your telephone company. Interface:......................................................Loop Start Ringer:............................................Standard Bridged Ringer ...............................16-68 Hz Sine or Square Wave 40 - 130 Volts Ringer Signal Resistance:..........................Greater than 10 Megohms (smc-02/23/94)