They can display their name or remain anonymous. The original idea was to have all users take advantage of a live video stream, but this proved somewhat distracting to the speaker and the live audience, because the viewers moved around a lot. They might answer the phone, talk to visitors, eat lunch, or scratch themselves. Their movement could be distracting to the speakers, especially if the remote viewer was obviously ignoring the speaker. Most remote viewers now display a static image.
Remote viewers see the real-time video of the speaker centered in their screen.
To achieve this goal, they designed a user interface that didn't require a speaker to push any buttons or learn new technology. They also wanted the remote viewers to feel comfortable interacting with the speaker. Some of the technical challenges involved in building the system were bandwidth and processing requirements. The available software had latency issues because of buffering and streaming. It could take up to 15 seconds for the speaker to respond to a question from the remote audience.