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woody14619's Avatar
Posts: 1,455 | Thanked: 3,309 times | Joined on Dec 2009 @ Rochester, NY
#13
It could be temperature dependent. As regtheledge noted, if the SIM shifts from internal heat and drops contact it could kill the call. In your case, I'd doubt it's that though, since it would make immediate follow-up calls do the same thing. It being so precise, I'd be willing to bet you have something happening periodically that's causing it.

So what happens in 10 minute cycles? Wifi refresh? Do you have a position app installed (like Zaploc?) that's turning on GPS periodically? Next time before making a long call disable GPS, GPRS and Wifi and see if it still happens. (There are scripts and apps that disable wifi without disabling calling.) If that fixes it, turn them on one at a time and find out who the culprit is. That at least may help narrow your search.