vMix Call leverages WebRTC, which is a new standard means of communicating online. As such, it lives within the realm of capabilities defined by that standard. WebRTC is fundamentally designed for browser-to-browser communication, most typically using webcams as the video source.

Very-high-bit-rate video is not normal, or even considered, by WebRTC developers. Most WebRTC based services still default to 720p30 since that's the baseline performance of a generic webcam. Only some webcams are capable of 1080p30. Fewer still 720p60, or 4k30.

Nonetheless, the WebRTC standard does accommodate up to 4k30 at present. That is, the developer can ask the device to deliver 4k30, if the device is capable.

If you need to trunk video between location there are many other ways to do it. Some that are designed for the purpose are capable of very high bit rates. For example, NDI delivers 1080p at 130-140 mbps.

No Sir. You are not quite understanding vMix Call. It's based upon WebRTC. That's the foundational technology.

WebRTC is loosely built around common video conference/calling requirements, which are typically (but not always) focused on webcams.

vMix call is built using a reference framework (https://appr.tc) that simply does not support the very-high-bit-rate application you suggest.

What you seek is better accomplished using NDI or NDI-HX. That's not the sort of thing you would simply "dial-up" like a vMix call. It would require a VPN connection to ensure that both systems are on the same sub-net.

In theory, vMix Call could be extended to support what you ask. However, the use-case is so narrow that it would amount to a proprietary implementation.

vMix Call is an incredibly capable tool, but it's not the right tool for the kind of very-high-bit-rate link you seek. It's more about easily getting contributions from the field. Like a Skype caller.

I agree with Murchik.

A vMix to vMix call should have larger bitrate options and I would be surprised if this wasn't achievable.

maybe 5mbit / 8mbit / 10mbit / 14mbit should be added.

mjgraves talking about webcams is really irrelevant, he is talking about vMix to vMix. Unless there is actually a technical limitation not allowing higher than 4mbit

It's nice that everyone is agreeable. Nonetheless, vMix call is a WebRTC application. As such, there are limits to what it can do.

Similarly, you can't use Skype or Zoom and specify a 10-20 mbps stream. These tools are simply not designed to do what you desire.

You already have the tools to setup up high-bit-rate links. Use RTMP and send whatever you desire.