The rear-facing camera on a recent iPhone (or comparable high-end Android phone) is already going to exceed the quality ceiling for what streaming 2-way video w

The rear-facing camera on a recent iPhone (or comparable high-end Android phone) is already going to exceed the quality ceiling for what streaming 2-way video will support in resolution and bitrate, given acceptable lighting and background. If the front-facing camera on their laptop or tablet doesn't cut it, they should use the rear-facing camera on their phone, and put the rest of their effort into lighting and setup.