<s>
In	O
computing	O
,	O
CHILL	B-Language
(	O
an	O
acronym	O
for	O
CCITT	O
High	B-Language
Level	I-Language
Language	I-Language
)	O
is	O
a	O
procedural	B-Application
programming	I-Application
language	I-Application
designed	O
for	O
use	O
in	O
telecommunication	O
switches	O
(	O
the	O
hardware	O
used	O
inside	O
telephone	O
exchanges	O
)	O
.	O
</s>
<s>
The	O
language	O
is	O
still	O
used	O
for	O
legacy	B-Device
systems	I-Device
in	O
some	O
telecommunication	O
companies	O
and	O
for	O
signal	O
box	O
programming	O
.	O
</s>
<s>
The	O
CHILL	B-Language
language	O
is	O
similar	O
in	O
size	O
and	O
complexity	O
to	O
the	O
original	O
Ada	B-Language
language	I-Language
.	O
</s>
<s>
The	O
first	O
specification	O
of	O
the	O
CHILL	B-Language
language	O
was	O
published	O
in	O
1980	O
,	O
a	O
few	O
years	O
before	O
Ada	B-Language
.	O
</s>
<s>
ITU	O
provides	O
a	O
standard	O
CHILL	B-Language
compiler	O
.	O
</s>
<s>
A	O
free	O
CHILL	B-Language
compiler	O
was	O
bundled	O
with	O
GCC	B-Application
up	O
to	O
version	O
2.95	O
,	O
however	O
,	O
was	O
removed	O
from	O
later	O
versions	O
.	O
</s>
<s>
An	O
object-oriented	B-Language
version	O
,	O
called	O
Object	B-Language
CHILL	I-Language
,	O
was	O
developed	O
also	O
.	O
</s>
<s>
ITU	O
is	O
responsible	O
for	O
the	O
CHILL	B-Language
standard	O
,	O
known	O
as	O
ITU-T	O
Rec	O
.	O
</s>
<s>
In	O
late	O
1999	O
CCITT	O
stopped	O
maintaining	O
the	O
CHILL	B-Language
standard	O
.	O
</s>
<s>
CHILL	B-Language
was	O
used	O
in	O
systems	O
of	O
Alcatel	O
System	O
12	O
and	O
Siemens	O
EWSD	B-Device
,	O
for	O
example	O
.	O
</s>
