We have a few Samsung phones that we've been testing vMix Call on and they all used to be able to receive the master volume from vMix but now they seem to register the site as an actual call which mutes all audio and can't be changed. For example, you can't listen to music while in a phone call and I don't think there is a way to override it because it could be used for scamming purposes.

Has anyone else come across this?

Also does anyone know how to get the call in at a higher frame rate / resolution? Our Galaxy S7 is the only one that really plays fluent motions but we are planning on using vMix Call with cheaper phones as action cameras on vehicles and don't want to risk putting a $1000 phone on there.