Bit [7..4]

Bits[3..0]

0000

Language using the GSM 7 bit default alphabet

0000  German

0001  English

0010  Italian

0011  French

0100  Spanish

0101  Dutch

0110  Swedish

0111  Danish

1000  Portuguese

1001  Finnish

1010  Norwegian

1011  Greek

1100  Turkish

1101  Hungarian

1110  Polish

1111 Language unspecified

 

0001

0000  GSM 7 bit default alphabet; message preceded by language indication

the first 3 characters of the mssage are a two-character representation of the language encoded according to ISO 639, followed by a CR characters. The CR character is then followed by 90 characters of text.

0001  UCS2; message preceded by language indication

The message starts with a two GSM 7 bit default alphabet character representation of the language encoded according to ISO 639. This is padded to the octet boundary with two bits set to 0 and then followed by 40 characters of UCS2 encoded message.

An MS not supporting UCS2 coding will present the two character language indentifier followed by improperly interpreted user data.

0010..1111  Reserved

0010

0000  Czech

0001  Hebrew

0010  Arabic

0011  Russian

0100  Icelandic

0101..1111  Reserved for other language using the GSM 7 bit default alphabet, with unspecified handling at the MS

0011

0000..1111  Reserved for other language using the GSM 7 bit default alphabet, with unspecified handling at the MS

01xx

If Bit 5 = 0, the text is uncompressed

If Bit 5 = 1, the text is compressed using the compression algorithm defined in 3GPP TS 23.042

If Bit 4 = 0, indicate that bits 1 to 0 are reserved and have no message class meaning

If Bit 4 = 1, indicate that bits 1 to 0 have a message class meaning

1000

1001

Message with User Data Header (UDH) structure :

1101

1110

1111

Data coding/message handling

Bit 3 = reserved, set to 0