Exactly. I know Iridium has this problem, e.g. it's very popular to use their satellite modems to track cargo containers while they're being shipped: when a big

Exactly. I know Iridium has this problem, e.g. it's very popular to use their satellite modems to track cargo containers while they're being shipped: when a big container ship pulls into port and they all wake up and report their position at once, the network suffers a fair amount (and this is with far lower bandwidth).