ASAP chip: SEEQ DE2764-30

Map 3 chip U1: 27256-25I
Speech chip U2: 27256-25I
Rate chip U3: 27256-25I
Prime chip U4: DE27128-35
U5: SEEQ DE2864-300

Other socketed chips:
Motorola MC14818ACP RTC RAM
(2) HD6809EP processors
Toshiba TC5517AP-2 SRAM
Mitel? MD68SC21AE "peripheral interface adapter"