We have a door bell and intercom installed and for the chime to be really useful it needs to support the intercom. Otherwise you need the phone near to notice the intercom rings (we have a two floor flat so we’d love to use multiple chimes - especially near the terrace door), which is a shame. If this was ever implemented we’d consider getting more chimes but for now it’s a bit of a dumb device for us.
I would like to use the chime when my children are asleep. During this time a need to disable my preinstalled bell as it wakes them up. It would be great to have a chime react on the intercom in another room.