Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!tut.cis.ohio-state.edu!ucbvax!SIUCVMB.BITNET!ST7021
From: ST7021@SIUCVMB.BITNET
Newsgroups: comp.dcom.modems
Subject: High-end Modem Speeds...
Message-ID: <9103200803.AA13245@ucbvax.Berkeley.EDU>
Date: 19 Mar 91 21:01:44 GMT
Sender: usenet@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 15

I am curious to know what the 'real' connection speeds (minus compression, etc)
of some of today's high speed modems are (Hayes, USR and Telebit, for example).
I had an interesting coversation with an IBM telecomm guru about six years ago
where he told me that 9600bps was about as high as normal phone lines can
handle due to their quality. Is this still generally true? I realize that he
had given me a number that was in a logical step (2400, 4800, 9600, ...) so
is there a maxed-out ceiling speed, once again minus compression, etc?

Lastly, on a similar topic, what is the most common technique used by modem
manufacturers to deal with the frequency overlap (echo suppression, ping-pong,
etc)?

Thanks for all the help!

Thomas Boehler