User`s manual

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Appendix F GSM Alphabet
Standard SMS can contain 160 characters. However, the characters typed must be part of the
so-called 7-bit default alphabet as specified by GSM 3.38. As shown in the table below, this alphabet
contains all ASCII characters and some accented characters.
For example, u umlaut (ü) and e with grave (è) are in this set. Using any character not in this set will
force the SMS to be a Unicode SMS, in which case the length of the SMS will be limited to 70
characters.
Note that the following characters count as two characters: { } [ ] ~ | \ and the Euro
symbol. As you can see in the table below, this is because the codes for these characters must be
prefaced by the escape code (0x1B).
The table below shows the 7-bit default alphabet as specified by GSM 03.38. The corresponding
ISO-8859-1 decimal codes are shown in the rightmost column. Note that the euro sign (€) is also
included.
Hex
Dec
Character Name
Character
ISO-8859-1
DEC
0x00
0
COMMERCIAL AT
@
64
0x01
1
POUND SIGN
£
163
0x02
2
DOLLAR SIGN
$
36
0x03
3
YEN SIGN
¥
165
0x04
4
LATIN SMALL LETTER E WITH GR AV E
è
232
0x05
5
LATIN SMALL LETTER E WITH ACUTE
é
233
0x06
6
LATIN SMALL LETTER U WITH GRAVE
ù
249
0x07
7
LATIN SMALL LETTER I WITH GRAVE
ì
236
0x08
8
LATIN SMALL LETTER O WITH GRAVE
ò
242
0x09
9
LATIN CAPITAL LETER C WITH CEDILLA
Ç
199
0x0A
10
LINE FEED
10
0x0B
11
LATIN CAPITAL LETTER O WITH STROKE
Ø
216
0x0C
12
LATIN SMALL LETTER O WITH STROKE
ø
248
0x0D
13
CARRIAGE RETURN
13
0x0E
14
LATIN CAPITAL LETTER A WITH RING
ABOVE
Å
197
0x0F
15
LATIN SMALL LETTER A WITH RING
ABOVE
å
229
0x10
16
GREEK CAPITAL LETTER DELTA
Δ
0x11
17
LOW LINE
-
95
0x12
18
GREEK CAPITAL LETTER PHI
Φ
0x13
19
GREEK CAPITAL LETTER GAMMA
Γ