Path: utzoo!attcan!uunet!wuarchive!cs.utexas.edu!swrinde!ucsd!ucbvax!unisoft!hoptoad!hsfmsh!daemon
From: tnixon@hsfmsh.UUCP (Toby Nixon)
Newsgroups: comp.dcom.modems
Subject: Re: FAX WITH SOFTWARE & USR HST 14.4K ONLY???
Message-ID: <3629@hsfmsh.UUCP>
Date: 23 Jul 90 17:46:58 GMT
Sender: daemon@hsfmsh.UUCP
Organization: Hayes Microcomputer Products, Inc.  Norcross, Georgia
Lines: 31

In article <2631@igloo.scum.com>, George Wang asks:

- Is it possible to do standard FAXES (send & receive) with SOFTWARE
- only and no special fax hardware.... I have a USR Robotics 14.4K
- HST with the new V.42bis mod...
-
- I heard there is a program for MicroSoft Windows 2.X called
- Power Page which lets you do this.. Is this true??

No, it is NOT possible to communicate with fax machines from 
standard PC modems.  The modems you and I most often use have Bell 
103, Bell 212, CCITT V.22, V.22bis, and V.32 modulation schemes, 
with possibly a proprietary scheme thrown in for good measure (Hayes 
ping-pong, USR HST, Telebit multicarrier, etc).  Fax uses other 
modulation schemes:  CCITT V.21, V.27ter, V.29, and soon to be V.17 
for higher speeds.  There is no way to "fake" a modulation scheme in 
software -- your hardware has to support it.  You CAN send your 
faxes through a third party (e.g., Compuserve, MCI Mail, AT&T Mail, 
etc.), but THEY have to have the hardware (fax modems) to 
communicate with the fax machine.

	-- Toby

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Toby Nixon, Principal Engineer     Fax:    +1-404-441-1213  Telex: 6502670805
Hayes Microcomputer Products Inc.  Voice:  +1-404-449-8791  CIS:    70271,404
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