#ROM Ernest Telecom, Inc Revised 06-29-87 Model 7D D4.10 09/01/87 95DC PHILIPS 27C256 @DIP28 # VOICE CHIP VOICE CHIP 08/31/87 4E07 CYPRESS CY27C128 @DIP28 # Rate Table Dallas DS1225Y @DIP28 Nonvolatile SRAM