Indoor stations
Answer the door from the wall, a desk phone, or your cell
This is the inside half of the Akuvox intercom. Hang a screen on the wall, or put the IP video phone on a desk. Talk and unlock without pulling out a cell phone. Optional. The outdoor station still works with a phone if you use cloud.
Local: indoor screens are how you run with no subscription. The door rings the wall. Internet can be down. Cloud: the same screens still ring, and the phone app rings too.
Match the indoor station or IP phone to the outdoor door station you already picked. Stands that fit that model show up on the product page. Mix with door access readers on other doors. Same system.