The Automatic Telephone Exchange Demonstrator is state of art Microprocessor Technology. It has user friendly commands and is simple to operate. Each function is programmable through the telephone several built-in functions and readily usable. The instrument is housed in an elegant one panel with four wall mountable telephone instruments, with on main and four extensions. These telephone instruments can be used as normal telephone lines through the exchange including intercom facilities. The instruments are normal decade type push-button telephones. All blocks of the instrument are marked and printed on the protective acrylic panel. Various functional blocks EPABX are marked. They are Relay bank for external communication for line calls), relay bank for internal communication (intercom facility), display the current user/users of the exchange. Opto-isolator section, switching section, tone generator/ringer, ringer amplifier, Line coupler/relay/drivers, MICROPROCESSOR, EPROM RAM, buffer section, connection for 4 internal instruments and one external line. Features: - Intercommunication facilities between instruments.
- Call conference Call forwarding
- Call transfer Call back
- Call consult & hold Call pick-up
- Auto call back Direct dialing
- Different ring tones Ring polling
- Music on hold Call restrict local /STD
Specifications: - No of lines: one trunk and 4 extensions.
- Instruments: normal decade dial with 9-11 PPS.
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