From a quick hello to a group catch-up, UIMessage calls are designed to feel immediate. We own the entire real-time path — signaling, the media server, and relays — so we can tune for clarity and latency instead of renting someone else's pipes.
Owned, not rented
Every audio, video and screen-share frame is encrypted on your device before it leaves, with keys exchanged through the same end-to-end encrypted sessions as your messages. Our relay and group-call servers carry the frames without being able to open them, and a call doesn't start if its encryption can't.
In a one-to-one call with someone in your contacts, the two devices may connect directly, which is the fastest path. With anyone else, the call goes through our relay, so they never see your network address.
