> > Originally, we were using the "open.internet" GPRS APN. However,
> > the telco bills were showing 30-40% more traffic than we were
> > measuring in our software. Switching to the "internet" APN sorted
> > this out.
> > It turns out that the "open.internet" APN allows all inbound traffic
> > to your dynamically-assigned public IP address, whereas "internet"
> > only allows inbound IP traffic associated with existing TCP
> > connections (and presumably UDP too for DNS stuff).
>> This is very interesting Kenn. Where did you manage to get that
I'm sure someone in O2's corporate data group told us about
the two APNs. IIRC, the way they put it was "open.internet is
for when you need to connect to your mobile device" or something
to that effect.
Going from that statement to my above conclusions was the
result of experiment, since trying to find the right person
in O2 to talk about this was practically impossible.
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