> But there are reasons for volume (or usage) charges.
Suppose it's the modem bank that's congested?
Industry standard is one 28,8kbps modems for each 8 unlimited
access (no volume or time charges) PPP customers.
Jeff @ Washington
The congestion can occur at the IP
> layer (delayed and dropped packets) or the physical layer (radio
> interference), but it's essentially the same problem.
> If the radio link is not a bottleneck, then I would think usage
> prices are difficult to justify. Even less so if the prices are so
> high that they are stifling traffic to some level far below
> > Now what if (legalities aside) my ISP had a huge radio station set up
> > and I bought a radio/modem which I connected to my linux box, running
> > ppp to the other end hooked into a portmaster?
> > I'd not have to pay anything to TelCom. Just the monthly 800$US to the
> > ISP.
> Well, if there are enough ISPs doing the same thing (and granted
> that may be years down the road), the frequency spectrum will have
> to be explicitly allocated, and somehow the congestion cost has to
> be paid.
> > Again, I fail to see the inherent need to charge by packet.
> Inherently there is at a reason. But in practice, today, I don't
> imagine there's much congestion in the airwaves of Africa outside of
> the major cities.
> How do these HF radio prices compare to cellular phone charges, when
> the two are being offered in the same geographic area?
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