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- The DigiPhone is my first hardware product. It is the result of my
- senior project at Cal Poly. I am building a batch of them this
- summer and will be marketing them in August (1989). Included below
- is the abstract from the senior project report. Please let me know
- if you would be interested in something like this. Currently, I
- have it installed on my BBS number and interfaced with Perspective
- BBS. Just call my BBS voice and press "0" (touch-tone) within the
- first 5 seconds to get a demonstration of the DigiPhone.
-
- ABSTRACT
-
- The DigiPhone
-
- An IBM PC Voice Mail Card
-
- The DigiPhone functions as an enhanced telephone
- answering machine and is designed as a plug in card for
- the IBM PC and compatibles. In addition to standard
- answering machine functions, the DigiPhone features
- programmable outgoing message selection, message routing,
- response to caller's touch tone signals, and remote
- programming ability.
-
- The DigiPhone will answer incoming telephone calls,
- deliver outgoing messages which are programmably
- selectable from as many as 16 digitized audio messages
- stored on the PC's hard disk, record incoming messages to
- the hard disk or optionally to an external tape recorder,
- route messages to a specified receiver, respond to a
- caller's touch tone signals, and enter a remote
- programming mode as a result of a special code sent by the
- caller.
-
- Audio messages are processed digitally via A/D and
- D/A converters which receive and send 8 bit data to and
- from the IBM PC through a selectable port address. A/D
- conversion is implemented with the ADC0802 which is
- operated at a clock rate of 512 Khz (corresponding to a
- conversion rate of 8 Khz). D/A conversion is implemented
- with the DAC0830. Interface with the telephone line is
- accomplished with the speech circuit TP5700 coupled
- through opto-couplers. Messages are recorded using an
- external 600 ohm dynamic microphone and played back
- through an external 8 ohm speaker.
-
- A full featured pull-down menu program is provided
- with the DigiPhone and implements all programmable
- functions. Data I/O with the card is interrupt driven to
- allow apparent simultaneous disk I/O.
-
- Production of the DigiPhone is planned for July, 1989
- with distribution planned for August, 1989. Retail price
- will be less than $200.
-
- Daniel Durbin___________________________________________________
- SysOp: Cygnus X-1 BBS | CIS: 73447,1744
- | GEnie: D.DURBIN