🚀 go-pugleaf

In article <5kirhd$eu3@news.istar.ca>, ptchat@istar.ca (Paul
Chattaway) writes:

> X2 modems do in fact work, but the actual throughput you get depends a
> LOT on how good the wire is from your house to the local exchange, and
> on how many other devices you have on the same line.  According to the
> manufacturers X2 modems _are_ capable of 56Kbits, but because FCC
> regulations limit the amount of power a modem is allowed to use,
> 53Kbits is the highest speed they're ever likely to reach.  You might
> find that due to line noise and other factors, 48Kbits is the highest
> you're likely to get...  And keep in mind that these are "receive"
> speeds; X2 modems still send in 33.6kbits.

Could you possibly explain the power limit restriction to 53k?  As you
say the high speed is receive only, so the modem will only be
generating 33k6.  AFAIK the high speed end has to be ISDN connected,
and so is just sending a digital bit-stream.  I am sure that there
cannot be any restriction on the data pattern that the ISDN sends,
even using a voice or 3.1kHz audio bearers otherwise the 'Data over
voice bearer' that I believe is popular in the USA would not work.