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Talk & connect

Voice and video calls, straight from the conversation

Calls that start from the chat and connect on mobile data — one-to-one or up to eight people.

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Some conversations are three messages away from being a two-minute call. On Asyncbit the call button is inside the chat, so switching costs nothing: no separate app and no meeting link. Calls are free, voice or video, one-to-one or in a group, in the browser or on the Android app.

Calls run on WebRTC. Where the network allows, the two ends connect directly; where it doesn't — some mobile networks, office Wi-Fi, strict firewalls — the call goes through a TURN relay server instead. That fallback is what lets calls connect on mobile data and restrictive networks rather than ringing forever.

Group calls take up to 8 people, and up to 4 of them can be on video; larger calls carry on as audio. That's a good fit for a study group, a family check-in or a club planning session, though it isn't a webinar tool. Every call leaves a line in the chat, such as “Missed audio call” or “Video call · 12:04”, and your call history keeps the list.

How voice & video calls works on Asyncbit

  1. 1

    Call from the chat

    Open a one-to-one or group chat and start a voice or video call. One-to-one chats need a mutual follow, so one-to-one calls do too.

  2. 2

    It finds a route

    WebRTC tries a direct connection first and falls back to a TURN relay when the network blocks it.

  3. 3

    Bring the group

    Up to 8 people can be in a group call, and up to 4 can be on video at once.

  4. 4

    Keep using your phone on Android

    On Android a call can shrink to picture-in-picture while you check something else.

  5. 5

    Look back later

    Call history and the summary lines in each chat show missed calls and how long calls lasted.

What makes it worth using

Free calls

No minutes, no tiers and no per-call charge.

Built for real networks

A TURN relay steps in for mobile data and restrictive networks.

Nothing to install on web

Calls run in the browser. The Android app is there if you want it.

Separate notification setting

Call notifications have their own switch, separate from messages, so you can quiet one without missing the other.

Picture-in-picture on Android

Keep a call going in a small window while you look something up.

Voice & video calls questions

Do Asyncbit calls cost anything?
No. Voice and video calls are free, one-to-one and in groups. Your normal mobile data charges still apply.
How many people can join a group call?
Up to 8. Up to 4 people can be on video; larger calls continue as audio.
Do I need an app to make a call?
No. Calls work in the browser. The Android app adds picture-in-picture during calls.
What happens to video in a bigger group call?
Video works for up to 4 people. A call with more people than that carries on as audio, up to the limit of 8.
Can I call someone I don't follow?
Calls start from a chat, and one-to-one chats need a mutual follow, so you'll need to follow each other first. Group calls start from a group chat.

Voice & video calls is free on Asyncbit

Along with everything else — feed, chat, calls, points and all. One free account, no tiers.

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Related features

MessagingOne-to-one chats between mutual follows, group chats of up to 50, and voice messages — encrypted at rest.ClubsPublic or invite-only spaces for one interest, with their own members and posts.StoriesText on a colour, or one photo with a line of text. Gone after 24 hours.

Read more about voice & video calls