High-speed dial-up works through acceleration servers that use broadband connections to quickly find requested web pages, file compression that reduces the size of files being transmitted, and caching of previously downloaded content so duplicate files aren't resent. These techniques allow dial-up connections to achieve speeds 5 times faster than traditional dial-up.

1. How High-speed Dial-up Works
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Kyohei Shiozawa

2. How High-speed Dial-up Works
More people use broadband services, so
Web sites must change more comfortable
bulking up their pages.
According to NetZero and EarthLink
services, you can get connection speeds
that are five times faster than
traditional dial-up service.

3. Acceleration Servers
Loading special software into a server
makes to speed up the process
considerably.
The acceleration server uses a broadband
connection to quickly search the
Internet for server that hosts the page
you're looking for.

4. File Compression
Accelerated Not Accelerated
HTML/Java-based Streaming media (audio or
Web pages video)
Text Secure Web pages
JPG/GIF-based Music/photos sent as e-mail
graphics attachments
E-mail Downloads

5. File Compression
The key element of high-speed dial-up
Internet is file compression.
There are two types of file compression;
lossy and lossless.
Text file – lossless compression.
Photos and graphic – lossy compression.

6. Caching
If the browser saves the images and
text, then the second time it loads the
same page it can check for duplicates.
If an image has not changed, there is no
need to download it again.

7. The Bottom Line
It would seem that a clever combination
of fairly straightforward technologies
has helped to overcome some of the speed
bumps of dial-up Internet.