SMS Encoding

Encoding scheme Text length of a short SMS Message in the Message segment Text length of a long SMS Message in the Message segment Supported
GSM 7-bit default alphabet (GSM 03.38)* 160 characters 153 characters Yes
UCS2 (ISO/IEC-10646) 16-bit 70 characters 67 characters Yes

*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:

Hex Dec Character name Character
0x1B0A 27 10 FORM FEED (PAGE BREAK)  
0x1B14 27 20 CIRCUMFLEX ACCENT ^
0x1B28 27 40 LEFT CURLY BRACKET {
0x1B29 27 41 RIGHT CURLY BRACKET }
0x1B2F 27 47 REVERSE SOLIDUS (BACKSLASH) \
0x1B3C 27 60 LEFT SQUARE BRACKET [
0x1B3D 27 61 TILDE ~
0x1B3E 27 62 RIGHT SQUARE BRACKET ]
0x1B40 27 64 VERTICAL BAR |
0x1B65 27 101 EURO SIGN
0x1B1B 27 27 RESERVED  

Table of country codes and their prefixes are provided upon request.