Use your smart phone to open doors
The building occupants can use their smart phone to open doors instead of or in addition to their company ID card.
![siemens building technology real estate commercial buildings improve operational efficiency siemens building technology real estate commercial buildings improve operational efficiency](https://assets.new.siemens.com/siemens/assets/api/uuid:21d19482-6fda-4ffc-9aac-402d0597dd82/width:100/quality:low/siemens-building-technology-real-estate-commercial-buildings-improve-operational-efficiency.jpg)
The building occupants can use their smart phone to open doors instead of or in addition to their company ID card.