Voice and video, from the thread you were already in

• One-to-one and group

  A call belongs to a conversation, so calling a group calls the group — there is no separate list of people to assemble first.

• Voice or video

  Two buttons, two kinds of call. Video starts on the loudspeaker; voice starts on the earpiece, the way a phone should.

• A history that names people

  The Calls tab lists every call across every conversation, labelled with the other party — never "call with You".

Starting, ringing, joining

Tap and it rings — Sebairo's servers decide who may join. Everyone else in the conversation sees it ringing — as a full incoming call screen, or as a banner if they are busy elsewhere in the app. A call that is already running does not lock latecomers out: the Calls tab shows it as active with a Join button, so somebody who missed the ring is one tap away from being in it.

• Incoming, two ways

  A full-screen ring when you are idle, an in-app banner when you are mid-task.

• Join in progress

  Active calls stay joinable from the Calls tab for as long as they are running.

• Add people mid-call

  Open the participants sheet and ring another member in without hanging up on anyone.

Inside the call

The controls are the ones your hands already know: mute, camera on or off, flip between front and back, speaker or earpiece, and hang up. A one-to-one video call gives the other person the screen with you in a corner; a group lays everyone out in a grid that adapts as people arrive and leave, with a ring around whoever is speaking and a badge on anyone who is muted. Chat stays available during the call, because it is the same conversation.

• Adaptive grid

  The layout changes with the number of participants instead of shrinking everyone to a stamp.

• Speaking and muted, visibly

  A ring for the active speaker, a badge for a muted mic — no guessing who is talking.

• Participants sheet

  Who has joined, out of who was invited, plus the control to ring in someone who has not.

After the call

Every call is recorded as an entry — who, which conversation, voice or video, when it started and when it ended — and that history is what the Calls tab reads.

• Complete history

  Across every conversation, newest first, with the group title or the other person's name and photo.

• No hidden recording

  Sebairo does not record your calls to disk. The history is metadata: who, when, how long.

How a call stays private

A call is private to its participants, and joining one means being invited — being part of the conversation it belongs to. Permission to be in a call is decided by the same rules that decide whether you can read the chat, and it is decided server-side.

• Membership decides access

  Not a link. If you are not in the conversation, there is no call for you to join.

• Android today

  Sebairo ships on Android today, installed from the download page. There is no iOS app.

Questions people actually ask

• How many people can be in a group call?

  Everyone in the conversation can join, and the grid re-lays itself as they do. Practical quality depends on the devices and connections in the room.

• Can I join a call that already started?

  Yes. Open the Calls tab: an active call shows a Join button for as long as it is running, so a missed ring is not a missed meeting.

• Does Sebairo record my calls?

  No. What is stored is the call record — kind, participants, start and end — not the audio or video.

• Can I switch from voice to video mid-call?

  You can turn your camera on at any point during a call — the control is right there in the bar. Everyone else sees your video appear in the layout.

• What happens if my connection drops?

  The call carries on for the others and you can rejoin from the Calls tab while it is still active. A one-to-one call with nobody left ends on its own.

• Can someone call me if I blocked them?

  No. A call belongs to a conversation, and a blocked person cannot open one with you — so there is no room for them to ring you into.

• Is there a desktop or web version of calls?

  Not today. Sebairo is a phone app, on Android now, and calls live inside it. This site is the marketing and help surface, not a second client.