Home > @ Software, Data Acquisition and Control, Microcontrollers, Phone/Sound > 8-channels phone calls digitizer system with DOS storage software

8-channels phone calls digitizer system with DOS storage software

2001, customer: private project, 1 developer
result: sold and used
OS: DOS; MC: AT89C52; languages: C; tools: TC 2.0, PN, i51 ะก cross-compiler

External MC based adapter detects on-hook line state, digitizes phone line signals and sends mixed stream of all active channels to PC via LPT port.
DOS software splits the stream and stores phone call data to separate WAV files for each active channel.
Access to stored data was made over network.

@ Software, Data Acquisition and Control, Microcontrollers, Phone/Sound

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