PSTN _ PBX Line Audio to Speaker

Project Details

Includes : Circuit design with component selection + preparation proto type circuit on breadboard with functional validation Excludes : Component cost Phase : 1 Require conversion circuit to be design of PSTN OR EPABX line audio to PA amplifier with auto pick up - Auto cut off + Chime tone at starting and ending of announcement. Attached basis circuit design of tele line to speaker _ mic. Phase : 2 Multi Tele line (+ Local Paging Station) to multi Speaker line announcement with logic controlled circuit. Phase : 3 Scheduled Recorded message Playing in Speaker line + External "PFC DO" signal wise speaker line pre-recorded message announcement.

Uploaded documents (if any) will be visible after an NDA is signed. Posted on : 22 Sep, 2023