Home Assistant Add-on: Hikvision SDK for Door Intercoms
Readme here: https://github.com/pergolafabio/Hikvision-Addons/tree/main/hikvison-sdk
Home Assistant Add-on: Register Openips/PBX as extension on your indoor panel
Readme here: https://github.com/pergolafabio/Hikvision-Addons/tree/main/hikvison-opensips