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"With current levels of traffic there simply is no time to help. That's reality. When I control a large sector like EURM_CTR I need to prioritize and serve as many pilots as possible. 2 or 3 text pilots will break my scanning of the airspace, because it takes much more time to recognize a text message, read it, process it and then reply to it. By voice the same process takes just 2 or 3 seconds. With 40 or 50 pilots in my airspace every second counts and I have to prioritize and text pilots will get late replies if it is not urgent.\n "
<https://forums.vatsim.net/topic/26388-center-controllers-ignoring-me-flying-through-their-airspace/page/2/?tab=comments#comment-157994>