On Sunday 12 May 2002 21:54, Shaul Karl wrote:
> > Can anyone recommand a modem which works on linux and supports
> > voice/fax recongnition , caller ID , v.92(if there are any).
> > Also I don't have any ISA slots in my computer so I need either
> > pci one or external.
> >
> > after weeks of looking help would be most appriciated
> >
> > Ely Levy
> > System group
> > Hebrew University
> > Jerusalem Israel
>
> Have you tried the Modems section (21) of the LDP's Hardware-HOWTO?
>
> And a word (question?) about 56k connectivity:
>
>   * You might be unrealistic about how much available bandwidth is
> on your
>     modem line. Lets do the math for a typical 56k modem
> connection:
>
>      1. 56k modems = 56,000 bits per second.
>
>      2. You really DON'T have a 56k modem but a 52k modem per US
> FCC limitations.
US is the key word here. Who says that modems that are destined for
other markets than the US get this restriction enforced on them ? As 
far as I know Israel's and Europe's Communication regulations are not
limited by FCC regulations.

>
>      3. You'll almost NEVER get 52k, the best connection I used to
> get was
>          48k
Again, correct me if I'm wrong, but AFAIK the modem connection speed 
at the initial handshake time is not necessarily the speed in which 
they will communicate for the entire session. The speed might go 
above 48k in the middle of the session...
>
>      4. 48,000 bits per second is 4,800 BYTES per second (8 bits to
Hmm.. I think there's a bug in KCalc or something. when I do 48,000/8
I seem to get 6000... 

> a byte +
>         2 bits for the START and STOP RS-232 serial bits)
Anyone wishes to confirm this ? That the control bits are counted
into the modem's so called "BPS" ?





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