Overview
Combined with an analog front end the PSB 4860 provides a solution for embedded or stand alone answering machine applications. Together with a standard microcontroller for analog telephones these two chips form the core of a featurephone with full duplex speakerphone and answering machine capabilities.

FEATUREs
Digital Functions
• High performance recording by DigiTape™
• Selectable compression rate (3.3 kbit/s, 10.3 kbit/s)
• Variable playback speed
• Support for ARAM or Flash Memory
• Optional voice prompt EPROM
• Full duplex speakerphone
• DTMF generation and detection
• Call progress tone detection
• Caller ID recognition
• Direct memory access
• Real time clock
• Equalizer
• Automatic gain control
• Automatic timestamp
• Auxiliary parallel port
• Ultra low power refresh mode

General Features
• SSDI/IOM®-2 compatible interface
• Serial control interface for programming