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In Mobile telephony GSM 03.38 is a character set used in the Short Message Service of GSM based cell phones. It is defined in GSM recommendation 03.38. Messages sent via this encoding can be encoded in the default GSM 7-bit alphabet, the 8-bit data alphabet, and the 16-bit UTF-16 alphabet[1]. Support of the GSM 7-bit alphabet is mandatory for GSM handsets and network elements,[1] but characters in languages such as Arabic, Chinese, Korean, Japanese or Cyrillic alphabet languages must be encoded using the 16-bit UTF-16 character encoding.

GSM 7 bit default alphabet and extension table of 3GPP TS 23.038 / GSM 03.38

3GPP TS 23.038 / GSM 03.38
x0 x1 x2 x3 x4 x5 x6 x7 x8 x9 xA xB xC xD xE xF
0x @ £ $ ¥ è é ù ì ò Ç LF Ø ø CR Å å
1x Δ _ Φ Γ Λ Ω Π Ψ Σ Θ Ξ ESC Æ æ ß É
2x SP ! " # ¤ % & ' ( ) * + , - . /
3x 0 1 2 3 4 5 6 7 8 9 : ; < = > ?
4x ¡ A B C D E F G H I J K L M N O
5x P Q R S T U V W X Y Z Ä Ö Ñ Ü §
6x ¿ a b c d e f g h i j k l m n o
7x p q r s t u v w x y z ä ö ñ ü à
1B 0x FF
1B 1x ^
1B 2x { } \
1B 3x [ ~ ]
1B 4x |
1B 5x
1B 6x
1B 7x


  1. ^ a b 3GPP TS 23.038, Alphabets and language-specific information.

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