<s>
Elastix	B-Protocol
is	O
a	O
unified	B-Protocol
communications	I-Protocol
server	B-Application
software	O
that	O
brings	O
together	O
IP	O
PBX	O
,	O
email	O
,	O
IM	O
,	O
faxing	O
and	O
collaboration	O
functionality	O
.	O
</s>
<s>
The	O
Elastix	B-Protocol
2.5	O
functionality	O
is	O
based	O
on	O
open	B-Application
source	I-Application
projects	O
including	O
Asterisk	B-Language
,	O
FreePBX	B-Application
,	O
HylaFAX	B-Device
,	O
Openfire	B-Language
and	O
Postfix	B-Application
.	O
</s>
<s>
As	O
of	O
Elastix	B-Protocol
5.0	O
all	O
functionality	O
is	O
provided	O
through	O
3CX	B-Protocol
,	O
a	O
software	O
based	O
private	B-Device
branch	I-Device
exchange	I-Device
(	O
PBX	O
)	O
based	O
on	O
the	O
SIP	B-Application
(	O
Session	B-Application
Initiation	I-Application
Protocol	I-Application
)	O
standard	O
.	O
</s>
<s>
It	O
enables	O
extensions	O
to	O
make	O
calls	O
via	O
the	O
public	O
switched	O
telephone	O
network	O
(	O
PSTN	O
)	O
or	O
via	O
Voice	B-Application
over	I-Application
Internet	I-Application
Protocol	I-Application
(	O
VoIP	B-Application
)	O
services	O
.	O
</s>
<s>
Elastix	B-Protocol
5.0	O
is	O
an	O
IP	O
business	O
phone	O
system	O
that	O
supports	O
standard	O
SIP	B-Application
soft/hard	O
phones	O
,	O
VoIP	B-Application
services	O
and	O
traditional	O
PSTN	O
phone	O
lines	O
.	O
</s>
<s>
Elastix	B-Protocol
2.5	O
is	O
free	B-Application
software	I-Application
,	O
released	O
under	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
.	O
</s>
<s>
Elastix	B-Protocol
5.0	O
is	O
Proprietary	B-Application
released	O
under	O
the	O
terms	O
of	O
the	O
3CX	B-Protocol
license	O
.	O
</s>
<s>
Elastix	B-Protocol
2.5	O
has	O
a	O
good	O
support	O
for	O
telephony	O
hardware	O
.	O
</s>
<s>
It	O
includes	O
drivers	O
for	O
the	O
major	O
manufacturers	O
like	O
Dinstar	O
,	O
OpenVox	O
,	O
Digium	B-Protocol
,	O
Khomp	O
,	O
Sangoma	O
Technologies	O
Corporation	O
,	O
Rhino	O
Equipment	O
,	O
Xorcom	O
,	O
and	O
Yealink	O
.	O
</s>
<s>
Elastix	B-Protocol
2.5	O
also	O
supports	O
other	O
phone	O
brands	O
thanks	O
to	O
the	O
SIP	B-Application
and	O
IAX	B-Protocol
protocols	O
that	O
Asterisk	B-Language
implements	O
.	O
</s>
<s>
Elastix	B-Protocol
2.5	O
was	O
the	O
first	O
distribution	O
that	O
included	O
a	O
call	O
center	O
module	O
with	O
a	O
predictive	O
dialer	O
,	O
released	O
entirely	O
as	O
free	B-Application
software	I-Application
.	O
</s>
<s>
This	O
module	O
can	O
be	O
installed	O
from	O
the	O
same	O
web-based	O
Elastix	B-Protocol
interface	O
through	O
a	O
module	O
loader	O
.	O
</s>
<s>
Elastix	B-Protocol
was	O
created	O
and	O
maintained	O
by	O
PaloSanto	O
Solutions	O
,	O
an	O
Open	B-Application
Source	I-Application
support	O
company	O
based	O
in	O
Ecuador	O
.	O
</s>
<s>
Elastix	B-Protocol
was	O
released	O
to	O
the	O
public	O
for	O
the	O
first	O
time	O
in	O
March	O
2006	O
.	O
</s>
<s>
It	O
was	O
not	O
until	O
late	O
December	O
2006	O
that	O
Elastix	B-Protocol
was	O
released	O
as	O
a	O
Linux	B-Application
distribution	I-Application
with	O
Asterisk	B-Language
,	O
Zaptel	O
and	O
a	O
number	O
of	O
other	O
packages	O
which	O
were	O
easily	O
administrated	O
via	O
a	O
user	O
friendly	O
Web	O
interface	O
that	O
caught	O
the	O
community	O
's	O
attention	O
.	O
</s>
<s>
The	O
Elastix	B-Protocol
2.5	O
Linux	B-Application
distribution	I-Application
is	O
based	O
on	O
CentOS	O
,	O
which	O
has	O
binary	O
compatibility	O
with	O
Red	O
Hat	O
Enterprise	O
Linux	B-Operating_System
.	O
</s>
<s>
From	O
its	O
initial	O
release	O
until	O
now	O
the	O
Elastix	B-Protocol
distro	O
has	O
grown	O
in	O
popularity	O
.	O
</s>
<s>
The	O
project	O
was	O
nominated	O
for	O
two	O
straight	O
years	O
(	O
2007	O
and	O
2008	O
)	O
as	O
finalist	O
in	O
the	O
SourceForge	B-Application
Community	O
Choice	O
Awards	O
.	O
</s>
<s>
In	O
2016	O
the	O
Elastix	B-Protocol
project	O
was	O
acquired	O
by	O
3CX	B-Protocol
.	O
</s>
<s>
With	O
this	O
acquisition	O
the	O
Elastix	B-Protocol
Distro	O
versioned	O
at	O
5.0	O
was	O
switched	O
to	O
a	O
proprietary	B-Application
software	I-Application
on	O
top	O
of	O
Debian	O
with	O
the	O
3CX	B-Protocol
platform	O
.	O
</s>
<s>
Open-source	B-Application
forks	B-Application
of	O
pre-version	O
5	O
Elastix	B-Protocol
are	O
being	O
maintained	O
by	O
the	O
Issabel	B-Protocol
project	O
.	O
</s>
<s>
Issabel	B-Protocol
–	O
A	O
project	O
to	O
maintain	O
and	O
advance	O
an	O
open-source	B-Application
fork	B-Application
of	O
Elastix	B-Protocol
.	O
</s>
