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- Path: sparky!uunet!enterpoop.mit.edu!ira.uka.de!math.fu-berlin.de!cs.tu-berlin.de!hillig
- From: hillig@cs.tu-berlin.de (Markus Hillig)
- Newsgroups: comp.dcom.fax
- Subject: Re: Can it be done?
- Date: 27 Jan 1993 19:15:00 GMT
- Organization: Technical University of Berlin, Germany
- Lines: 33
- Message-ID: <1k6mvkINN7bh@news.cs.tu-berlin.de>
- References: <93024.144440GNR100@psuvm.psu.edu> <1993Jan26.065646.16007@mcshub.dcss.mcmaster.ca> <1993Jan27.004547.1664@saki.com.au>
- NNTP-Posting-Host: sand.cs.tu-berlin.de
-
- adam@saki.com.au (Adam Donnison) writes:
-
-
- >The facts are that the fax protocol includes stuff that your mere mortal
- >1200 baud modem is not capable of. The fax protocol uses a whole
- >different set of CCITT V. numbers (V.27, V.29) and 1200baud is not
- >really an option.
-
- >When a fax transmission starts, the two modems decide on the data speed
- >by going through a negotiation phase that determines the protocol and
- >speed to use. This uses a synchronous, error checked mechanism that
- >works out what the highest error-free speed is available.
-
- >Then the faxes start data transfer in a completely different protocol,
- >that is half duplex and not error checked (usually).
-
- >Even if you get around some of the problems, most faxes have a low-speed
- >of 2400 baud.
- Does this mean faxing is possible with an ordinary 2400bps modem (and of course
- some particluar softawre) ?
-
- MARKUS
- >Adam
-
- >--
- >Adam Donnison email: adam@saki.com.au
- >Saki Computer Services Pty Ltd
- >93 Kallista-Emerald Road phone: +61 3 752 1512
- >THE PATCH VIC 3792 AUSTRALIA fax: +61 3 752 1098
- --
- Markus Hillig, Potsdamer Str. 63, Apt. 709, 1000 Berlin 30, GERMANY
- Voice: +49-30-2629172 * Internet: hillig@opal.cs.tu-berlin.de
- --------------------------------------------------------------------------------
-