In Vernor Vinge's boon Fire Upon the Deep he describes how interstellar calls work in the future. In the lowest bandwidth tier you are watching an animated stat

In Vernor Vinge's boon Fire Upon the Deep he describes how interstellar calls work in the future. In the lowest bandwidth tier you are watching an animated static 2d photo with text-to-speech . The book also touches topics like translation, different spectrum and senses different species want from the call.