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From: oeschi@netmbx.UUCP (Johann Deutinger)
Newsgroups: comp.dcom.fax
Subject: Re: Group4/Group3 faxes
Message-ID: <1663@netmbx.UUCP>
Date: 12 Jan 91 00:15:58 GMT
References: <2581@trlluna.trl.oz>
Distribution: comp
Organization: netmbx, Berlin, West Germany
Lines: 18

In article <2581@trlluna.trl.oz> simon@shiva.trl.oz (Simon Michnowicz - A Free Spirit) writes:
>Can Group 4 fax machines interwork with Group 3 machines?
>I can not see so in the protocol, but do commerical
>machines combine both facilities to enable easy interworking?

Typically G4-machines include hardware and software for interworking with G3.
This will remain true for many years to support the huge installed number
of G3-machines. Technically this is done by a G3-modem and a codec for
PCM<->analog conversion, and some software, of course ;-)
Some countries even require a G4-machine to be G3-compatible to get the
PTT-approval.



-- 
oeschi@netmbx.UUCP     | Johann Deutinger
voice +49 30 396 50 21 | Ferrari electronic GmbH (.. no, we don't sell cars)
fax   +49 30 396 80 20 | Beusselstr. 27  -  1000 Berlin 21  -  FRG