I know that tally lights have been discussed a lot in this forum, but I haven't yet found the solution to this specific need.

I'm preparing for my first fully remote production using SRT or Vmix-to-Vmix calls to send 4 camera feeds to a remote production/switching destination.

I'm trying to figure out how to do remote tally - such then when I switch to Camera-3 in my control center, camera 3's tally light goes on at the remote studio.

Am I correct in thinking that I (or more likely a developer) could create a script that could send commands to a remote Vmix (in the remote studio) to turn on the correct tally light for each remote camera when that camera is sent to output? I've successfully used smartphones on a local LAN tied to a local Vmix on the same LAN, but never on a WAN (Internet).

If that's not possible, can you recommend another approach that might work - possibly a cloud-based solution or remote http connection to each tally light?

Many thanks.

-David

It's not really programming that is the problem. It's the configuration of your networks. You need to setup vpns to make this work properly I guess, but I'm not an expert at networks.