Thats an interesting observation, and is line with what I have seen. We develop various GSM products, and I have noticed network packets delivered to our produ

Thats an interesting observation, and is line with what I have seen. We develop various GSM products, and I have noticed network packets delivered to our products at various times of the day, different for each GSM network. On one network it was every morning 08:00 a packet would be sent from the network to our device. (I could see it by seeing the modem would exit it's low power mode). I have not yet tried to do a capture of the packet, as it might be something destined for the modem baseband or sim card. Anybody care to venture a guess? Perhaps a network ping or something?