Please can you think about the audio/visual hiccups?

Your quick response to poor quality audio was to switch off video 

that's ok in the short term of fire fighting a live conference

but please spare a thought or two for hearing Impairment - those of us who lip read as a means of boosting the communication info to support hearing loss / hearing aids - are literally cut off without video  - TWICE!! where both sound and visual fails or is lost

In addition visual access to presenters helps others with communication / other difficulties

Your support staff were GREAT in helping me to overcome blips