TIL If the latency on a phone call is >300ms there will be over-talk. https://books.google.com/books?id=GBwEAAAAMBAJ&pg=PA72&lpg=PA72&dq=latency+before+people+talk+over+each+other&source=bl&ots=boPnvuEZzR&sig=YQVvh7nxaSAIBpI0b05bMfTYch0&hl=en&sa=X&ved=0ahUKEwjdosuixunMAhUBmx4KHY7-DgIQ6AEITjAJ#v=onepage&q=latency%20before%20people%20talk%20over%20each%20other&f=false
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May 20, 2016