David Rasch wrote:
On Mon, Jun 28, 2004 at 08:47:24AM -0400, Alan Porter <[EMAIL PROTECTED]> wrote:
What you are talking about is simply a codec.
It's funny, the cellular companies do the same thing. At least, the GSM
providers (Cingular, AT&T Wireless) do for "circuit switched data" calls.
You buy an all-digital phone, and you hook it to your PC to surf the net.
You would think that you've got an end-to-end digital connection.
However, your ISP doesn't know anything about cell phones... they are
expecting you to dial up using an analog modem. So the cellular company
routes data calls through a bank of out-dial modems!
cell phone --- tower --- switch --- modem pool ~~~ ISP modem --- internet
In Europe, the GSM providers offer a chioce between analog modems or
ISDN, so it's possible to go all-digital. Here in the US, many carriers
(Sprint, Verizon, Alltell) are using the CDMA standard. Rather than allowing
you to call an existing ISP's modem, they simply act as the internet service
provider themselves. You get the all-digital connection, but then you're
forced to use the carrier's internet service.
You can always dial up to ISDN using your cell phone, this makes it an
all-digital connection.
David
Only if your provider allows you to dial-out ISDN. Ironically, my phone
supports it as a setting, yet when ever I try to set it and dial our
ISDN numbers here at Intrex, it bombs. The only explanation I can offer
being that Cingular routes all calls out as analog calls, regardless of
what the phone requests.
Aaron S. Joyner
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