Scheduled Voice Chats. Group and Channel admins can schedule a | Telegram Tips
Scheduled Voice Chats. Group and Channel admins can schedule a voice chat for a specific date and time.
Members will see a countdown at the top of the chat, which they can tap to set a notification for when it goes live.
To schedule a voice chat, open the Group or Channel’s profile page. Android: tap ⋮ > Start Voice Chat > Schedule Voice Chat iOS: tap Voice Chat > Schedule Voice Chat