On Tue, 2010-11-16 at 02:29 +0000, Michael Watterson wrote:
> 28K is Trellis encoded. 33k is using compression, it's really only 28k,=20
> that's actually the highest speed analogue modem for end to end PSTN.

I'm not sure where you get that.

28.8k is 3200baud, while 33.6k is 3429 baud, there is no "compression"
involved to get 33.6k.

The max theoretical bandwidth from analog end to analog end is about
35kbit/s.

The fact that one end is digital (i.e. an ISP) allows for V.90 and V.92
which are capable of 56/33.6 and 56/48 respectively.

https://secure.wikimedia.org/wikipedia/en/wiki/Modem

TTYL

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