View Source ExTDLib.Object.InternalLinkTypeVideoChat (ExTDLib v0.0.4)

The link is a link to a video chat. Call searchPublicChat with the given chat username, and then joinGroupCall with the given invite hash to process the link.

NameTypeDescription
chat_usernamestringUsername of the chat with the video chat.
invite_hashstringIf non-empty, invite hash to be used to join the video chat without being muted by administrators.
is_live_streamboolTrue, if the video chat is expected to be a live stream in a channel or a broadcast group.

More details on telegram's documentation.