SMS Encoding

Encoding schemeText length of a short SMS Message in the Message segmentText length of a long SMS Message in the Message segmentSupported
GSM 7-bit default alphabet (GSM 03.38)*160 characters153 charactersYes
UCS2 (ISO/IEC-10646) 16-bit70 characters67 charactersYes

*length of Message segments is given based on usage of characters of GSM 7-bit default alphabet table. In this case, it should be noted that if the characters of GSM 7-bit default alphabet extended table are used, the length of Message segments will decrease, since each character of the extended table is transmitted as two octets, and is counted as two characters

The extended table of GSM 7-bit default alphabet characters:

HexDecCharacter nameCharacter
0x1B0A27 10FORM FEED (PAGE BREAK) 
0x1B1427 20CIRCUMFLEX ACCENT^
0x1B2827 40LEFT CURLY BRACKET{
0x1B2927 41RIGHT CURLY BRACKET}
0x1B2F27 47REVERSE SOLIDUS (BACKSLASH)\
0x1B3C27 60LEFT SQUARE BRACKET[
0x1B3D27 61TILDE~
0x1B3E27 62RIGHT SQUARE BRACKET]
0x1B4027 64VERTICAL BAR|
0x1B6527 101EURO SIGN
0x1B1B27 27RESERVED 

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