Re: [NTLK] Cellular modem and phone-to-modem questions

On Tue, Jun 2, 2009 at 1:23 AM, Scott Hoffman <hoffo@mac.com> wrote:
>
>      I have an even more pedestrian question about these wireless
> setups - how exactly do they work?  Do they rely on dialing an ISP
> or do they pull data directly?  (e.g. Would I access T-Mobile's
> mobile internet or use the airtime to dial a local dialup ISP?)

Pretty much everything is digital these days, so you're not using a
dial-up connection over cellular networks to connect to your own ISP,
per se.

My old Verizon Wireless connection actually did do dial-up over their
digital connection (although it was limited to < 14.4kbps), but
directly to them not another ISP. These days, with higher speed
digital connections (I'm on AT&T which uses GPRS/EDGE and the newer 3G
connections), you're using special GSM network protocols to connect to
them. In both cases, they are directing your traffic to/from the
Internet at large.

I've probably glossed that over a little too much, but maybe it'll be helpful.

Morgan Aldridge

---
morgant@makkintosshu.com
http://www.makkintosshu.com/
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