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Re: [hylafax-users] Class 2.1?

On 2002.10.23 13:44 Michael T. Babcock wrote:
> Our most recent multitech modem supports classes 1, 1.0, 2.0, 2.1; 
> where can I get info on class 2.1?  (We're running it in Class 1 
> anyway).

ITU T.32 and its addendums.

Essentially Class 2.1 varies from [a fully implemented] Class 2.0 by 
V.34-fax (Super G3) capability.  Likewise Class 1.0 varies from Class 1 
by the same.

HylaFAX can't use this capability of Class 1.0, though, currently.

In actuality, though, a fax Class is whatever the manufacturer makes it 
be.  Whether the manufacturer calls it 2, 2.0, or 2.1 is a matter of 
their preference.  But, generally speaking, Class 2 is Rockwell's draft 
and Class 2.0 is USR's draft.  Class 2.0 became the standard.  2.1 is 
simply an extension of 2.0.


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