Alphabets and language-specific information
The present document defines the character sets, languages and message handling requirements for SMS, CBS and USSD and may additionally be used for Man Machine Interface (MMI) (3GPP TS 22.030 [2]).
The specification for the Data Circuit terminating Equipment/Data Terminal Equipment (DCE/DTE) interface (3GPP TS  27.005 [8]) will also use the codes specified herein for the transfer of SMS data to an external terminal.