Voice chat in WhatsApp is a feature that allows users to have live voice conversations in group chats while still being able to message in the group. It is designed to be less disruptive than a group call, as participants receive a push notification to join the voice chat instead of being rung automatically. The feature is available for groups of 33 to 128 people, and call controls remain accessible from the top of the chat, allowing participants to send text messages at the same time. Voice chats are end-to- end encrypted and will end automatically once everyone has left the chat or if no one joins the first or last person in the chat for 60 minutes