| 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.