ITU T.61

{{short description|ITU-T Recommendation}} {{Infobox technology standard | title = T.61 | long_name = Character repertoire and coded character sets for the international teletex service | image = | caption = | status = Withdrawn | year_started = 1980 | version = (03/93) | version_date = March 1993 | preview = | preview_date = | organization = ITU-T | committee = Study Group VIII | base_standards = | related_standards = T.51, ASN.1, X.500, X.509 | abbreviation = | domain = encoding | license = Freely available | website = https://www.itu.int/rec/T-REC-T.61 }}

'''T.61''' is an ITU-T Recommendation for a Teletex character set. T.61 predated Unicode, and was the primary character set in ASN.1 used in early versions of X.500 and X.509 for encoding strings containing characters used in Western European languages.<ref>{{Cite web|url=https://www.itu.int/rec/T-REC-T.61|title=T.61 : Character repertoire and coded character sets for the international teletex service|website=www.itu.int|access-date=2019-11-14}}</ref> It is also used by older versions of LDAP.<ref>{{cite web |url=https://www.php.net/manual/en/function.ldap-8859-to-t61.php |publisher=The PHP Group |title=ldap_8859_to_t61 |work=PHP Manual}}</ref> While T.61 continues to be supported in modern versions of X.500 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some standards using ASN.1 (for example in RSA Security's PKCS #9), the 1988-11 version of the T.61 standard itself was superseded by a never-published 1993-03 version; the 1993-03 version was withdrawn by the ITU-T.<ref name="t.61-itu-t">{{cite web|url=https://www.itu.int/rec/T-REC-T.61|title=Recommendation T.61|publisher=ITU-T}}</ref> The 1988-11 version is still available.<ref name="t.61-itu-t"/>

T.61 was one of the encodings supported by Mozilla software in email and HTML until 2014, when the supported encodings were limited to those in the WHATWG Encoding Standard (although T.61 remained supported for LDAP).<ref>{{cite web |url=https://groups.google.com/d/msg/mozilla.dev.apps.thunderbird/2P5kCJJS_WI/oWhT0STivL0J |last=Sivonen |first=Henri |title=Character encoding changes in m-c require c-c action |work=mozilla.dev.apps.thunderbird |date=2014-09-26}}</ref>

== Code page layout == {{Infobox character encoding |name = T.61 |standard = ITU T.61 |alias = {{plainlist| * Code page 1036 * Code page 20261 * ISO-IR-103}} |otherrelated = {{flatlist|  * ETS 300 706 * ISO 5426 * ISO 6937, ITU T.51 * NeXT Multinational * PostScript Standard Encoding * ITU T.101}} }} The following table maps the T.61 characters to their equivalent Unicode code points.

{|{{chset-table-header1|T.61-8bit<ref name="T.61" /><ref name="reg106">{{cite iso-ir |number=106 |sponsor=ITU |sponsor-link=International Telecommunication Union |title=Teletex Primary Set of Control Functions |date=1985-08-01}}</ref><ref name="reg107">{{cite iso-ir |number=107 |sponsor=ITU |sponsor-link=International Telecommunication Union |title=Teletex Supplementary Set of Control Functions |date=1985-08-01}}</ref><ref>RFC 1345</ref>}} |- |{{chset-left1|0x}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-ctrl1|U+0008 BACKSPACE|BS}} |{{chset-cell1|||style=background:#DDD}} |{{chset-ctrl1|U+000A LINE FEED (LF)|LF}} |{{chset-cell1|||style=background:#DDD}} |{{chset-ctrl1|U+000C FORM FEED (FF)|FF}} |{{chset-ctrl1|U+000D CARRIAGE RETURN (CR)|CR}} |{{chset-ctrl1|U+000E SHIFT OUT|LS1}} |{{chset-ctrl1|U+000F SHIFT IN|LS0}} |- |{{chset-left1|1x}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-ctrl1|U+0019 END OF MEDIUM/008E|SS2|fn={{efn|The ISO/IEC 2022 C0 control set defined by T.61 (ISO-IR-106) encodes SS2 and SS3 at 0x19 and 0x1D respectively.<ref name="reg106" /> It is permitted to use ISO/IEC 2022 sequences for switching control sets (as opposed to graphical sets) within ISO/IEC 10646 (UCS/Unicode) in contexts where processing ANSI escape codes is appropriate, provided that each byte in the sequence is padded to the code unit size of the encoding,<ref name="iso10646czdc1d">{{citation |mode=cs1 |id=ISO/IEC 10646 |title=Information technology — Universal Coded Character Set (UCS) |author=ISO/IEC JTC 1/SC 2 |author-link=ISO/IEC JTC 1/SC 2 |publisher=ISO |edition=5th |year=2017 |url=https://standards.iso.org/ittf/PubliclyAvailableStandards/c069119_ISO_IEC_10646_2017.zip |section=12.4: Identification of control function set |pages=19–20}}</ref> in which case SS2 and SS3 would be available at U+0019 and U+001D. However, the more common ISO/IEC 6429 control set, the names of which are listed for reference in the Unicode code chart,<ref>{{citation|mode=cs1 |url=https://www.unicode.org/charts/PDF/U0080.pdf |title=C1 Controls and Latin-1 Supplement |work=The Unicode Standard, Version 12.1 |author=Unicode Consortium |author-link=Unicode Consortium |year=2019}}</ref> encodes SS2 and SS3 at U+008E and U+008F respectively.|name=ss2}} }} |{{chset-ctrl1|U+001A SUBSTITUTE|SUB}} |{{chset-ctrl1|U+001B ESCAPE|ESC}} |{{chset-cell1|||style=background:#DDD}} |{{chset-ctrl1|U+001D INFORMATION SEPARATOR THREE/008F|SS3|fn={{efn|name=ss2}} }} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |- |{{chset-left1|2x}} |{{chset-ctrl1|U+0020 SPACE| SP }} |{{chset-cell1|U+0021 EXCLAMATION MARK|!}} |{{chset-cell1|U+0022 QUOTATION MARK|"}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|U+0025 PERCENT SIGN|%}} |{{chset-cell1|U+0026 AMPERSAND|&}} |{{chset-cell1|U+0027 APOSTROPHE|'}} |{{chset-cell1|U+0028 LEFT PARENTHESIS|(}} |{{chset-cell1|U+0029 RIGHT PARENTHESIS|)}} |{{chset-cell1|U+002A ASTERISK|*}} |{{chset-cell1|U+002B PLUS SIGN|+}} |{{chset-cell1|U+002C COMMA|,}} |{{chset-cell1|U+002D HYPHEN-MINUS|-}} |{{chset-cell1|U+002E FULL STOP|.}} |{{chset-cell1|U+002F SOLIDUS|/}} |- |{{chset-left1|3x}} |{{chset-cell1|U+0030 DIGIT ZERO|0}} |{{chset-cell1|U+0031 DIGIT ONE|1}} |{{chset-cell1|U+0032 DIGIT TWO|2}} |{{chset-cell1|U+0033 DIGIT THREE|3}} |{{chset-cell1|U+0034 DIGIT FOUR|4}} |{{chset-cell1|U+0035 DIGIT FIVE|5}} |{{chset-cell1|U+0036 DIGIT SIX|6}} |{{chset-cell1|U+0037 DIGIT SEVEN|7}} |{{chset-cell1|U+0038 DIGIT EIGHT|8}} |{{chset-cell1|U+0039 DIGIT NINE|9}} |{{chset-cell1|U+003A COLON|:}} |{{chset-cell1|U+003B SEMICOLON|;}} |{{chset-cell1|U+003C LESS-THAN SIGN|<}} |{{chset-cell1|U+003D EQUALS SIGN|=}} |{{chset-cell1|U+003E GREATER-THAN SIGN|>}} |{{chset-cell1|U+003F QUESTION MARK|?}} |- |{{chset-left1|4x}} |{{chset-cell1|U+0040 COMMERCIAL AT|@}} |{{chset-cell1|U+0041 LATIN CAPITAL LETTER A|A}} |{{chset-cell1|U+0042 LATIN CAPITAL LETTER B|B}} |{{chset-cell1|U+0043 LATIN CAPITAL LETTER C|C}} |{{chset-cell1|U+0044 LATIN CAPITAL LETTER D|D}} |{{chset-cell1|U+0045 LATIN CAPITAL LETTER E|E}} |{{chset-cell1|U+0046 LATIN CAPITAL LETTER F|F}} |{{chset-cell1|U+0047 LATIN CAPITAL LETTER G|G}} |{{chset-cell1|U+0048 LATIN CAPITAL LETTER H|H}} |{{chset-cell1|U+0049 LATIN CAPITAL LETTER I|I}} |{{chset-cell1|U+004A LATIN CAPITAL LETTER J|J}} |{{chset-cell1|U+004B LATIN CAPITAL LETTER K|K}} |{{chset-cell1|U+004C LATIN CAPITAL LETTER L|L}} |{{chset-cell1|U+004D LATIN CAPITAL LETTER M|M}} |{{chset-cell1|U+004E LATIN CAPITAL LETTER N|N}} |{{chset-cell1|U+004F LATIN CAPITAL LETTER O|O}} |- |{{chset-left1|5x}} |{{chset-cell1|U+0050 LATIN CAPITAL LETTER P|P}} |{{chset-cell1|U+0051 LATIN CAPITAL LETTER Q|Q}} |{{chset-cell1|U+0052 LATIN CAPITAL LETTER R|R}} |{{chset-cell1|U+0053 LATIN CAPITAL LETTER S|S}} |{{chset-cell1|U+0054 LATIN CAPITAL LETTER T|T}} |{{chset-cell1|U+0055 LATIN CAPITAL LETTER U|U}} |{{chset-cell1|U+0056 LATIN CAPITAL LETTER V|V}} |{{chset-cell1|U+0057 LATIN CAPITAL LETTER W|W}} |{{chset-cell1|U+0058 LATIN CAPITAL LETTER X|X}} |{{chset-cell1|U+0059 LATIN CAPITAL LETTER Y|Y}} |{{chset-cell1|U+005A LATIN CAPITAL LETTER Z|Z}} |{{chset-cell1|U+005B LEFT SQUARE BRACKET|[}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|U+005D RIGHT SQUARE BRACKET|]}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|U+005F LOW LINE|_}} |- |{{chset-left1|6x}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|U+0061 LATIN SMALL LETTER A|a}} |{{chset-cell1|U+0062 LATIN SMALL LETTER B|b}} |{{chset-cell1|U+0063 LATIN SMALL LETTER C|c}} |{{chset-cell1|U+0064 LATIN SMALL LETTER D|d}} |{{chset-cell1|U+0065 LATIN SMALL LETTER E|e}} |{{chset-cell1|U+0066 LATIN SMALL LETTER F|f}} |{{chset-cell1|U+0067 LATIN SMALL LETTER G|g}} |{{chset-cell1|U+0068 LATIN SMALL LETTER H|h}} |{{chset-cell1|U+0069 LATIN SMALL LETTER I|i}} |{{chset-cell1|U+006A LATIN SMALL LETTER J|j}} |{{chset-cell1|U+006B LATIN SMALL LETTER K|k}} |{{chset-cell1|U+006C LATIN SMALL LETTER L|l}} |{{chset-cell1|U+006D LATIN SMALL LETTER M|m}} |{{chset-cell1|U+006E LATIN SMALL LETTER N|n}} |{{chset-cell1|U+006F LATIN SMALL LETTER O|o}} |- |{{chset-left1|7x}} |{{chset-cell1|U+0070 LATIN SMALL LETTER P|p}} |{{chset-cell1|U+0071 LATIN SMALL LETTER Q|q}} |{{chset-cell1|U+0072 LATIN SMALL LETTER R|r}} |{{chset-cell1|U+0073 LATIN SMALL LETTER S|s}} |{{chset-cell1|U+0074 LATIN SMALL LETTER T|t}} |{{chset-cell1|U+0075 LATIN SMALL LETTER U|u}} |{{chset-cell1|U+0076 LATIN SMALL LETTER V|v}} |{{chset-cell1|U+0077 LATIN SMALL LETTER W|w}} |{{chset-cell1|U+0078 LATIN SMALL LETTER X|x}} |{{chset-cell1|U+0079 LATIN SMALL LETTER Y|y}} |{{chset-cell1|U+007A LATIN SMALL LETTER Z|z}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|U+007C VERTICAL LINE|{{pipe}}}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-ctrl1|U+007F DELETE|DEL}} |- |{{chset-left1|8x}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-ctrl1|U+008B PARTIAL LINE FORWARD|PLD}} |{{chset-ctrl1|U+008C PARTIAL LINE BACKWARD|PLU}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |- |{{chset-left1|9x}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-ctrl1|U+009B CONTROL SEQUENCE INTRODUCER|CSI}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |- |{{chset-left1|Ax}} |{{chset-ctrl1|U+00A0 NO-BREAK SPACE|NBSP}} |{{chset-cell1|U+00A1 INVERTED EXCLAMATION MARK|¡}} |{{chset-cell1|U+00A2 CENT SIGN|¢}} |{{chset-cell1|U+00A3 POUND SIGN|£}} |{{chset-cell1|U+0024 DOLLAR SIGN|$}} |{{chset-cell1|U+00A5 YEN SIGN|¥}} |{{chset-cell1|U+0023 NUMBER SIGN|#}} |{{chset-cell1|U+00A7 SECTION SIGN|§}} |{{chset-cell1|U+00A4 CURRENCY SIGN|¤}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|U+00AB LEFT-POINTING DOUBLE ANGLE QUOTATION MARK|«}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |- |{{chset-left1|Bx}} |{{chset-cell1|U+00B0 DEGREE SIGN|°}} |{{chset-cell1|U+00B1 PLUS-MINUS SIGN|±}} |{{chset-cell1|U+00B2 SUPERSCRIPT TWO|²}} |{{chset-cell1|U+00B3 SUPERSCRIPT THREE|³}} |{{chset-cell1|U+00D7 MULTIPLICATION SIGN|×}} |{{chset-cell1|U+00B5 MICRO SIGN|µ}} |{{chset-cell1|U+00B6 PILCROW SIGN|¶}} |{{chset-cell1|U+00B7 MIDDLE DOT|·}} |{{chset-cell1|U+00F7 DIVISION SIGN|÷}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|U+00BB RIGHT-POINTING DOUBLE ANGLE QUOTATION MARK|»}} |{{chset-cell1|U+00BC VULGAR FRACTION ONE QUARTER|¼}} |{{chset-cell1|U+00BD VULGAR FRACTION ONE HALF|½}} |{{chset-cell1|U+00BE VULGAR FRACTION THREE QUARTERS|¾}} |{{chset-cell1|U+00BF INVERTED QUESTION MARK|¿}} |- |{{chset-left1|Cx}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|U+0300 COMBINING GRAVE ACCENT|◌̀}} |{{chset-cell1|U+0301 COMBINING ACUTE ACCENT|◌́}} |{{chset-cell1|U+0302 COMBINING CIRCUMFLEX ACCENT|◌̂}} |{{chset-cell1|U+0303 COMBINING TILDE|◌̃}} |{{chset-cell1|U+0304 COMBINING MACRON|◌̄}} |{{chset-cell1|U+0306 COMBINING BREVE|◌̆}} |{{chset-cell1|U+0307 COMBINING DOT ABOVE|◌̇}} |{{chset-cell1|U+0308 COMBINING DIAERESIS|◌̈}} |{{chset-cell1|U+0308 COMBINING DIAERESIS|◌̈|fn={{efn|Noted in the 1988 revision of the specification as having been allocated to the umlaut in the 1980 revision of the specification, but having since been deprecated.<ref name="T.61">{{citation|mode=cs1 |url=https://www.itu.int/rec/dologin_pub.asp?lang=e&id=T-REC-T.61-198811-S!!PDF-E&type=items |title=Character repertoire and coded character sets for the international teletex service |id=Recommendation T.61 |date=1988-11-25 |author=CCITT |author-link=ITU-T |edition=1988}}</ref> It was initially used to distinguish between umlaut and diaeresis.<ref name="t101">{{citation |mode=cs1 |url=https://www.itu.int/rec/T-REC-T.101-199411-I/en |title=International interworking for Videotex services |date=1994-11-11 |id=T.101:1994 |author=ITU-T |author-link=ITU-T |page=248 |section=Table C.9/T.101 – The supplementary set of graphic characters (default G2 set) }} (Difference between the codes is explained in the first note below table. Caveats: Is in second of the segmented PDFs in the download. The table itself is displayed in the PDF with severe mojibake (hence why the displayed table does not appear to correspond to the notes), and is supposed to look roughly [https://www.itscj-ipsj.jp/ir/070.pdf#page=2 like this] {{Webarchive|url=https://web.archive.org/web/20220310000716/https://www.itscj-ipsj.jp/ir/070.pdf#page=2 |date=2022-03-10 }}.</ref>}} }} |{{chset-cell1|U+030A COMBINING RING ABOVE|◌̊}} |{{chset-cell1|U+0327 COMBINING CEDILLA|◌̧}} |{{chset-cell1|U+0332 COMBINING LOW LINE|◌̲}} |{{chset-cell1|U+030B COMBINING DOUBLE ACUTE ACCENT|◌̋}} |{{chset-cell1|U+0328 COMBINING OGONEK|◌̨}} |{{chset-cell1|U+030C COMBINING CARON|◌̌}} |- |{{chset-left1|Dx}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|||style=background:#DDD}} |- |{{chset-left1|Ex}} |{{chset-cell1|U+2126 OHM SIGN|Ω}}  |{{chset-cell1|U+00C6 LATIN CAPITAL LETTER AE|Æ}} |{{chset-cell1|U+00D0 LATIN CAPITAL LETTER ETH|Ð}} |{{chset-cell1|U+00AA FEMININE ORDINAL INDICATOR|ª}} |{{chset-cell1|U+0126 LATIN CAPITAL LETTER H WITH STROKE|Ħ}} |{{chset-cell1|||style=background:#DDD}} |{{chset-cell1|U+0132 LATIN CAPITAL LIGATURE IJ|Ĳ}} |{{chset-cell1|U+013F LATIN CAPITAL LETTER L WITH MIDDLE DOT|Ŀ}} |{{chset-cell1|U+0141 LATIN CAPITAL LETTER L WITH STROKE|Ł}} |{{chset-cell1|U+00D8 LATIN CAPITAL LETTER O WITH STROKE|Ø}} |{{chset-cell1|U+0152 LATIN CAPITAL LIGATURE OE|Œ}} |{{chset-cell1|U+00BA MASCULINE ORDINAL INDICATOR|º}} |{{chset-cell1|U+00DE LATIN CAPITAL LETTER THORN|Þ}} |{{chset-cell1|U+0166 LATIN CAPITAL LETTER T WITH STROKE|Ŧ}} |{{chset-cell1|U+014A LATIN CAPITAL LETTER ENG|Ŋ}} |{{chset-cell1|U+0149 LATIN SMALL LETTER N PRECEDED BY APOSTROPHE|ŉ}} |- |{{chset-left1|Fx}} |{{chset-cell1|U+0138 LATIN SMALL LETTER KRA|ĸ}} |{{chset-cell1|U+00E6 LATIN SMALL LETTER AE|æ}} |{{chset-cell1|U+0111 LATIN SMALL LETTER D WITH STROKE|đ}} |{{chset-cell1|U+00F0 LATIN SMALL LETTER ETH|ð}} |{{chset-cell1|U+0127 LATIN SMALL LETTER H WITH STROKE|ħ}} |{{chset-cell1|U+0131 LATIN SMALL LETTER DOTLESS I|ı}} |{{chset-cell1|U+0133 LATIN SMALL LIGATURE IJ|ĳ}} |{{chset-cell1|U+0140 LATIN SMALL LETTER L WITH MIDDLE DOT|ŀ}} |{{chset-cell1|U+0142 LATIN SMALL LETTER L WITH STROKE|ł}} |{{chset-cell1|U+00F8 LATIN SMALL LETTER O WITH STROKE|ø}} |{{chset-cell1|U+0153 LATIN SMALL LIGATURE OE|œ}} |{{chset-cell1|U+00DF LATIN SMALL LETTER SHARP S|ß}} |{{chset-cell1|U+00FE LATIN SMALL LETTER THORN|þ}} |{{chset-cell1|U+0167 LATIN SMALL LETTER T WITH STROKE|ŧ}} |{{chset-cell1|U+014B LATIN SMALL LETTER ENG|ŋ}} |{{chset-cell1|||style=background:#DDD}} |} 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 == {{notelist}}

== References == <references/>

== External links == * [https://www.itu.int/rec/T-REC-T.61 ITU-T Recommendation T.61] at ITU-T * [https://itscj.ipsj.or.jp/ir/103.pdf ISO-IR-103] (ISO-IR registration of right-hand part) {{character encoding}}

Category:Character sets Category:ASN.1 T.61 T.61