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Jason Levine
Premium
join:2001-07-13
USA
reply to Gbcue

Re: How?

It doesn't need to be a deep packet inspection. AT&T should know which update servers its phones regularly hit. It can then say "any traffic to update.thisserver.com doesn't count towards the cap/overage" while still counting traffic to other data sources (even its own non-update sources) towards the cap/overage. This wouldn't be a network neutrality violation at all. They'd simply be filtering out system updates so that the customer is only charged for data they requested.
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-Jason Levine


innoman
-
Premium
join:2002-05-07
Dallas, TX
kudos:1
Reviews:
·VoicePulse

It doesn't even require that. All of those updates occur on different logical channels. (google Location Area Updates / Routing Area Updates and GSM or UMTS). All of that stuff takes place on the signaling side and doesn't even reach the systems that handle data billing. In GSM and earlier revisions of UMTS (3G), it is all handled over circuit switched, not packet switched.

AT&T is very capable of doing things the way you said though. All it has to do is assign certain communication to a different APN (as it does with visual voicemail on the iPhone, FOTA updates on any phone that does FOTA, etc...)