СамДом

A mobile application for a resident of an apartment building, which includes control of the entrance intercom (receiving video calls from visitors, opening the door, video surveillance through the intercom camera) and working with housing and communal services - displaying charges for housing and communal services, entering meter readings, paying for housing and communal services, participating in surveys and voting, requests to the emergency dispatch service. Designed to work in conjunction with 1C: Accounting in housing and communal services management companies.
If the application misses incoming calls, then you need to set up notifications in the phone and turn off energy saving for SamDom, instructions: http://fogrender.ru/samdom_tune_phone.html