There has been some apparently erroneous information on calculating modem bandwidth here lately ----
 
The bandwidth of 8 28,800 bps modems is 28800 X 8 = 230,400 bps (not including the affects of  compression), NOT 28800 X 100 / 8 or any other such formula.
 
Check your texts --- that formula is not in any book (I personally checked MS Press, Sybex, Que and Exam Cram) because it is incorrect.
 
Apparently this myth began due to a now-corrected Transcender question.
 
If anyone can find any written reference to this formula anywhere, please e-mail me with a SPECIFIC book and page number.
 
Thanks,
 
John