By voice over the internet, no SIM needed — works on tablets too. Adult: “Home” → “Call”. Child: “Call family” on “Today” — calling works during a break and when time has run out too. Both devices need microphone access. The adult can record the call on their phone (“Record”) — the child sees that it is being recorded; the recording goes neither to the server nor to the child's phone.
- The phone is locked or the screen is off — the call opens on the full screen, like an ordinary one.
- The phone is in use — a window with the photo, name and “Decline”/“Answer” appears at the top over the open app. If KidPair is already open, the call simply opens inside it.
- With sound on — KidPair's melody rings; in vibrate and silent modes — vibration only, no sound.
- A call to the child rings at the ring volume of their phone. If a KidPair call would be silent on the child's phone (ring volume at zero, “Calls from family” switched off in KidPair's notifications), the adult's device card says “KidPair calls ring without sound on the child's phone”, and the child's setup list gets a “Sound of family calls” step with a button that opens the right setting.
- For the window over apps the adult needs “Display over other apps” (“Settings” (the gear at the top) → “Access on this phone”), and for the full-screen call — “Full-screen notifications”. On the child's phone these are steps in the setup list.
When the child calls, it is always free. Calling the child from the app needs the subscription — and is free while the child's SOS is open.