Date   : Thu, 18 Nov 2010 11:41:19 +0000
From   : darren.grant@... (Darren Grant)
Subject: [OT] Who'da thought...

On 18 Nov 2010, at 09:22, Rob wrote:
> 
> Ah, 56K modems.  I used a lot at customers, and *never* saw one
> connect at more than 42. Uplink could go up to 33.3, but typically
> would be 28.8.  I think 28.8 was the most they could do when talking
> to each other- "56K" internet access needed special modems at the
> exchange end to support them.

Yes you are correct, to obtain 56k the ISP end needed to be connected via
ISDN, the local exchange then did the DtoA conversion that minimised the
line length.