Voice Calls

wzgram does not implement voice or video calls. The MTProto call layer needs a media stack — WebRTC, codecs, encryption negotiation — that is a different project from an API framework, so it is handled by external libraries built on top of wzgram.

Libraries

  • pytgcalls — group voice chats and private calls, actively maintained, and the one most projects use.

  • tgcalls — the Python bindings pytgcalls is built on, usable directly for lower-level control.

Because wzgram is a drop-in replacement for Pyrogram, a library that takes a Pyrogram client takes a wzgram one.

What wzgram does cover

The signalling around calls is ordinary API surface, so wzgram handles it:

  • video chats starting and ending arrive as service messages — filters.video_chat_started, filters.video_chat_ended and filters.video_chat_members_invited

  • get_call_members() lists who is in a group call

  • everything else in Telegram’s phone namespace is reachable as a raw function through invoke() — see Advanced Usage

An older implementation, pylibtgvoip, is outdated: the Telegram VoIP library underneath it was deprecated.