Hi, I am currently working on a custom integration for 2n helios IP intercoms.
The switches already work, directly using relays and outputs is almost finished.
I tested on firmware 2.39, but theres a pretty good chance that it will work on pretty much any firmware version that supports api usage.
Here’s the repo:
SVD-NL/helios2n-hass
I think i got HACS working now, but if that doesn’t work you can copy the contents as a custom integration.
I’m open to feature requests and bug reports, and remember that it is WIP 