nope, no typo.
it actualy said, and i quote: "Connected at 45.2 bps"
on my USR 56k WIN FAX INT modem.
and actually, I've heard it is possible to receive more than 49kbps on a telephone line,
If you modify the modem's driver file (with *.inf extension) and set the baud rates higher, and mess around with strings, then you can receive up to 115kbps.
I've done this to an older computer I had... and got download speeds averaging 9-10kb/sec but for some reason am unable to do it to this modem. The reason for that is most likely "limiting resistors" soldered into the modem itself. This is also known as "Hardware controled".
My other modem was almost 100% software controled.
Also, as far as the phone line causing restrictions; that is untrue.
the telephone line is strictly meant for voice chat, but can safely handle data transfers up to 50kbps. If you go beyond 50kbps then it can sometomes, but rarely, be known to cause interferance.
The only reason modems aren't meant to go any faster, is because the FCC rules state that it must not cause any interferance, but if some interferance is caused then it doesn't create too much of a problem.