<s>
HylaFAX	B-Device
is	O
a	O
fax	B-Application
server	I-Application
for	O
Unix-like	B-Operating_System
computer	O
systems	O
.	O
</s>
<s>
It	O
uses	O
a	O
client-server	O
design	O
and	O
supports	O
the	O
sending	O
and	O
receiving	O
of	O
faxes	O
as	O
well	O
as	O
text	O
pages	O
,	O
on	O
any	O
scale	O
from	O
low	O
to	O
very	O
high	O
volumes	O
,	O
if	O
necessary	O
making	O
use	O
of	O
large	O
numbers	O
of	O
modems	B-Application
.	O
</s>
<s>
It	O
is	O
open-source	B-Application
,	O
free	B-Application
software	I-Application
and	O
can	O
be	O
used	O
commercially	O
without	O
charge	O
.	O
</s>
<s>
Sam	O
Leffler	O
,	O
while	O
working	O
at	O
Silicon	O
Graphics	O
(	O
SGI	O
)	O
,	O
wrote	O
a	O
fax	B-Application
server	I-Application
for	O
SGI	O
's	O
IRIX	B-Operating_System
servers	O
called	O
FlexFAX	O
and	O
released	O
it	O
to	O
the	O
public	O
in	O
June	O
1991	O
.	O
</s>
<s>
In	O
April	O
1995	O
FlexFAX	O
was	O
renamed	O
HylaFAX	B-Device
with	O
the	O
3.0pl0	O
release	O
to	O
avoid	O
potential	O
trademark	O
issues	O
.	O
</s>
<s>
He	O
did	O
release	O
version	O
4.0pl1	O
in	O
December	O
;	O
however	O
,	O
in	O
February	O
1997	O
Sam	O
officially	O
handed	O
maintainership	O
of	O
HylaFAX	B-Device
over	O
to	O
Matthias	O
Apitz	O
,	O
who	O
had	O
previously	O
been	O
known	O
for	O
his	O
maintainership	O
of	O
the	O
SVR4	O
HylaFAX	B-Device
binary	O
releases	O
and	O
the	O
so-named	O
""	O
.	O
</s>
<s>
Some	O
HylaFAX	B-Device
community	O
members	O
were	O
frustrated	O
that	O
code	O
releases	O
and	O
development	O
work	O
did	O
not	O
increase	O
noticeably	O
after	O
the	O
maintainership	O
transition	O
.	O
</s>
<s>
Apitz	O
did	O
release	O
HylaFAX	B-Device
4.0pl2	O
a	O
year	O
later	O
,	O
in	O
February	O
1998	O
,	O
and	O
anticipated	O
an	O
eventual	O
4.0pl3	O
.	O
</s>
<s>
In	O
November	O
1998	O
,	O
Darren	O
Nickerson	O
,	O
maintainer	O
of	O
the	O
tpc.int	O
network	O
,	O
and	O
Robert	O
Colquhoun	O
led	O
an	O
attempt	O
to	O
revitalize	O
HylaFAX	B-Device
development	O
by	O
the	O
creation	O
of	O
hylafax.org,	O
a	O
central	O
repository	O
for	O
HylaFAX	B-Device
development	O
,	O
downloads	O
,	O
documentation	O
,	O
mailing	O
lists	O
,	O
etc	O
.	O
</s>
<s>
In	O
March	O
2002	O
,	O
Nickerson	O
started	O
iFAX	O
,	O
Inc.	O
,	O
endeavoring	O
to	O
sell	O
and	O
commercialize	O
HylaFAX	B-Device
in	O
particular	O
to	O
enterprise	O
customers	O
.	O
</s>
<s>
Thus	O
iFAX	O
began	O
selling	O
a	O
proprietary	O
product	O
called	O
HylaFAX	B-Device
Enterprise	O
Edition	O
which	O
supported	O
the	O
proprietary	O
interfacing	O
of	O
BrookTrout	O
fax	O
hardware	O
.	O
</s>
<s>
The	O
Class	O
1	O
driver	O
was	O
endowed	O
with	O
ECM	O
capability	O
,	O
fax	O
batching	O
support	O
(	O
sending	O
multiple	O
faxes	O
in	O
one	O
call	O
)	O
was	O
added	O
,	O
extended	O
resolution	O
support	O
began	O
,	O
MMR	O
and	O
JBIG	B-Application
data	O
compressions	O
were	O
supported	O
,	O
and	O
color	O
fax	O
reception	O
was	O
supported	O
all	O
in	O
a	O
relatively	O
short	O
amount	O
of	O
time	O
.	O
</s>
<s>
This	O
set	O
of	O
developments	O
,	O
and	O
the	O
subsequent	O
stabilization	O
of	O
those	O
features	O
,	O
made	O
HylaFAX	B-Device
not	O
only	O
the	O
best	O
,	O
most	O
feature-rich	B-Architecture
open-source	B-Application
fax	O
software	O
available	O
,	O
but	O
it	O
also	O
became	O
easily	O
the	O
most	O
feature-rich	B-Architecture
fax	O
software	O
of	O
any	O
kind	O
that	O
supported	O
average	O
,	O
inexpensive	O
off-the-shelf	O
fax	O
modems	B-Application
.	O
</s>
<s>
After	O
many	O
years	O
of	O
disagreements	O
between	O
Howard	O
and	O
Nickerson	O
regarding	O
the	O
direction	O
and	O
pace	O
of	O
the	O
software	O
development	O
,	O
Howard	O
began	O
developing	O
HylaFAX	B-Device
at	O
SourceForge.net	B-Application
in	O
October	O
2005	O
.	O
</s>
<s>
That	O
work	O
later	O
became	O
known	O
as	O
HylaFAX+	O
.	O
</s>
<s>
HylaFAX	B-Device
development	O
currently	O
continues	O
both	O
at	O
SourceForge	B-Application
and	O
at	O
hylafax.org	O
.	O
</s>
<s>
The	O
SourceForge	B-Application
development	O
aims	O
to	O
adopt	O
and	O
release	O
new	O
developments	O
quickly	O
and	O
with	O
little	O
hassle	O
,	O
and	O
so	O
releases	O
there	O
are	O
regular	O
and	O
frequent	O
.	O
</s>
<s>
The	O
development	O
at	O
hylafax.org	O
continues	O
to	O
be	O
steady	O
with	O
releases	O
occurring	O
less	O
frequently	O
and	O
without	O
adopting	O
all	O
of	O
the	O
features	O
found	O
in	O
HylaFAX+	O
.	O
</s>
