Robustel GoRugged M1000 UP User Guide
RT_UG_M1000 UP_v.1.1.1
07.10.2015
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Chapter 4
Appendix
4.1
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. You can see in the table below that this alphabet contains all ASCII characters and
some accented characters.
For example, u umlaut (ü) and e with grave (è), are in this set. Please study the table below to have a complete
overview. Using any character not in this set, will make the SMS a Unicode SMS and limit the length of the SMS to 70
characters.
Note: a few characters actually count as two characters. These characters are:
{}[]~|\ and the Euro symbol: €
You can also see that in the table below in the hex column. These characters need to be escaped.
Below is 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
0×00
0
COMMERCIAL AT
@
64
0×01
1
POUND SIGN
£
163
0×02
2
DOLLAR SIGN
$
36
0×03
3
YEN SIGN
¥
165
0×04
4
LATIN SMALL LETTER E WITH GRAVE
è
232
0×05
5
LATIN SMALL LETTER E WITH ACUTE
é
233
0×06
6
LATIN SMALL LETTER U WITH GRAVE
ù
249
0×07
7
LATIN SMALL LETTER I WITH GRAVE
ì
236
0×08
8
LATIN SMALL LETTER O WITH GRAVE
ò
242
0×09
9
LATIN CAPITAL LETTER C WITH CEDILLA
Ç
199
0×0A
10
LINE FEED
10
0×0B
11
LATIN CAPITAL LETTER O WITH STROKE
Ø
216
0×0C
12
LATIN SMALL LETTER O WITH STROKE
ø
248
0×0D
13
CARRIAGE RETURN
13
0×0E
14
LATIN CAPITAL LETTER A WITH RING ABOVE Å
197
0×0F
15
LATIN SMALL LETTER A WITH RING ABOVE
å
229
0×10
16
GREEK CAPITAL LETTER DELTA
Δ
0×11
17
LOW LINE
_
95
0×12
18
GREEK CAPITAL LETTER PHI
Φ
0×13
19
GREEK CAPITAL LETTER GAMMA
Γ
0×14
20
GREEK CAPITAL LETTER LAMBDA
Λ
0×15
21
GREEK CAPITAL LETTER OMEGA
Ω
0×16
22
GREEK CAPITAL LETTER PI
Π
0×17
23
GREEK CAPITAL LETTER PSI
Ψ
