[jaimehrubiks]

Telegram does not have group voice nor video calls. It has voice (and now video) chats.

// Unless I am not aware of any recent change, I tested this last month and don't see any related update ever since.

Which is not the same, and actually, for me is not useful at all. The main difference is that a "chat" does not ring the other participants' phones, which is a must for me to "call" my family either voice or video. You must first tell them through chat that you will create a voice or video room/chat. For 1-on-1 it does have calls, as it rings. For groups, it does not.

[webmobdev]

That actually sounds the right way to do it - do you really want your phone to ring everytime someone in a group initiates a voice or video call?

[HunOL]

I did not tested group (video or audio) calls, but 1 on 1 it works exactly as you (and me) expect. You could just call someone and it will ring on other side.