<s>
T.61	O
is	O
an	O
ITU-T	O
Recommendation	O
for	O
a	O
Teletex	O
character	B-General_Concept
set	I-General_Concept
.	O
</s>
<s>
for	O
encoding	B-General_Concept
strings	O
containing	O
characters	O
used	O
in	O
Western	O
European	O
languages	O
.	O
</s>
<s>
It	O
is	O
also	O
used	O
by	O
older	O
versions	O
of	O
LDAP	B-Protocol
.	O
</s>
<s>
While	O
T.61	O
continues	O
to	O
be	O
supported	O
in	O
modern	O
versions	O
of	O
X.500	B-Protocol
and	O
X.509	O
,	O
it	O
has	O
been	O
deprecated	O
in	O
favor	O
of	O
Unicode	O
.	O
</s>
<s>
It	O
is	O
also	O
called	O
Code	B-General_Concept
page	I-General_Concept
1036	I-General_Concept
,	O
CP1036	O
,	O
or	O
IBM	O
01036	O
.	O
</s>
<s>
While	O
ASN.1	B-Protocol
does	O
see	O
wide	O
use	O
and	O
the	O
T.61	O
character	B-General_Concept
set	I-General_Concept
is	O
used	O
on	O
some	O
standards	O
using	O
ASN.1	B-Protocol
(	O
for	O
example	O
in	O
RSA	O
Security	O
's	O
PKCS	O
#9	O
)	O
,	O
the	O
1988-11	O
version	O
of	O
the	O
T.61	O
standard	O
itself	O
was	O
superseded	O
by	O
a	O
never-published	O
1993-03	O
version	O
;	O
the	O
1993-03	O
version	O
was	O
withdrawn	O
by	O
the	O
ITU-T	O
.	O
</s>
