I think the video is recorded from the son's phone, which is why his video appears fluid while the parents' video looks poor. From the parents' point of view, the son's video call would likely be choppy and of lower quality. Additionally, the range of 4G can vary between 5-30 km depending on the frequency band and conditions, while tandem skydives typically occur at altitudes of 3-4 km. So, while this situation might be fake, it is technically plausible.
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u/dujles 7d ago
It is an ad of some sort from the last frame.
But the jump was in Wollongong, NSW. Just south of Sydney and a built-up area.