Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!fub!tmpmbx!netmbx!oeschi
From: oeschi@netmbx.UUCP (Johann Deutinger)
Newsgroups: comp.dcom.fax
Subject: Re: Why FAX send-only?
Message-ID: <1784@netmbx.UUCP>
Date: 30 Jan 91 00:15:56 GMT
References: <1991Jan27.195313.25909@ns.network.com> <1991Jan28.141246.700@ujocs.joensuu.fi>
Organization: netmbx, Berlin, West Germany
Lines: 23

In article <1991Jan28.141246.700@ujocs.joensuu.fi> vaisanen@joyds2.joensuu.fi (Jarmo Vaisanen) writes:
>> The more technical your answer, the better. :-)
>This is not going to be technical at all...
>I have got the impression that the reason for this is that FAX-standards
>don't specify any way to address the recipient (person specific) other than
>FAX-number (site specific).  Future Group 4 (?) standard should bring more
>advanced addressing methods for us.  (When is this going to happen?)

The reason to have many modems with fax send-only is that there are some
quite cheap modem chips (mainly from Sierra) that implement sending
faxes at 4800 bps (V27ter) only. Receiving faxes at high speed is
much more difficult than sending them. This makes the price difference.

Don't expect too much from Group 4. Sub-addressing is not included there
(but may be easily; it could also be included in Group 3 from the technical
point of view. The problem here is that there are too many fax machines
already installed that could not learn new protocol features)


-- 
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