I’m looking for a way to integrate a building’s apartment intercom system with ST, preferably without changing the entire system. The building is setup with IR103E Tektone Apartment Intercom Station, 3-Wire. I believe there are 4 fundamental features required:
- Cause an alert/event in ST based on a contact closure. I know there is plenty of closure hardware out there, like a FortrezZ MIMOlite
- Close a circuit to trigger unlock the front gate. Again, the same FortrezZ MIMOlite can do this part.
- Encode an audio signal when someone is at the entrance trying to talk. I’m pretty sure this is a dumb analog signal so any encoder with a DTH would work… maybe even one of the supported video cameras in just audio-only-mode…?
- Return the audio signal when I talk into my phone (this is probably just #3 running in reverse so long as I can push an audio stream back to the device).
Let me casually ignore response times and latency for now. I’m just curious if I can basically create a Ring / Doorbird style setup, but (a) no need for video and (b) retrofitting onto a super old analog building infrastructure.