T.61 is an
ITU-T Recommendation for a
Teletex
Teletex was ITU-T specification F.200 for a text and document communications service that could be provided over telephone lines. It was rapidly superseded by e-mail but the name ''Teletex'' lives on in several of the X.500
X.500 is a series o ...
character set. T.61 predated
Unicode,
and was the primary character set in
ASN.1 used in early versions of
X.500
X.500 is a series of computer networking standards covering electronic directory services. The X.500 series was developed by the ITU-T, Telecommunication Standardization Sector of the International Telecommunication Union (ITU-T). ITU-T was former ...
and
X.509
for encoding strings containing characters used in Western European languages. It is also used by older versions of
LDAP.
While T.61 continues to be supported in modern versions of
X.500
X.500 is a series of computer networking standards covering electronic directory services. The X.500 series was developed by the ITU-T, Telecommunication Standardization Sector of the International Telecommunication Union (ITU-T). ITU-T was former ...
and
X.509, it has been deprecated in favor of
Unicode. It is also called Code page 1036, CP1036, or IBM 01036.
While ASN.1 does see wide use and the T.61 character set is used on some standards using ASN.1 (for example in
RSA Security's
PKCS #9), the 1988-11 version of the T.61 standard itself was superseded by a never-published 1993-03 version; the 1993-03 version was withdrawn by the ITU-T.
The 1988-11 version is still available.
Code page layout
The following table maps the T.61 characters to their equivalent Unicode code points.
See
ITU T.51 for a description of how the accents at
0xC0..CF worked. They prefix the letters, as opposed to postfix used by Unicode.
See also
*
ITU T.51
Footnotes
References
External links
ITU-T Recommendation T.61at ITU-T
ISO-IR-103(
ISO-IR registration of right-hand part)
{{character encoding
Character sets
ASN.1
T.61
T.61