This is the GSM character set definition (from s35_pdu_mode.pdf
and completed by me). I wrote this by myself by testing all
available characters (I know you can also get it from ETSI).
This is only an 7bit character set. There is a
problem with the GSM char @ when using the programming language
C (0x00 means: end of string). In SCMxx it is solved by using
0x80(=128) instead during conversion. The * marks the characters
that needs conversion.
(Actually there is no way with ISO-8859 to display this file
completely correctly.)

Dec.    Hex    Char        Description
---------------------------------------
 00     0x00     @    *     at
 01     0x01     £    *     pound
 02     0x02     $    *     dollar
 03     0x03     ¥    *     yen
 04     0x04     è    *     small letter e with grave
 05     0x05     é    *     small letter e with acute
 06     0x06     ù    *     small letter u with grave
 07     0x07     ì    *     small letter i with grave
 08     0x08     ò    *     small letter o with grave
 09     0x09     Ç    *     capital letter c with cedilla
 10     0x0a    <LF>        line feed
 11     0x0b     Ø    *     capital letter o with stroke
 12     0x0c     ø    *     small letter o with stroke
 13     0x0d    <CR>        carriage return
 14     0x0e     Å    *     capital letter a with ring above
 15     0x0f     å    *     small letter a with ring above

 16     0x10     Ä    *     greek capital delta
 17     0x11     _    *     underscore
 18     0x12     Ö    *     greek capital phi
 19     0x13     Ã    *     greek capital gamma
 20     0x14     Ë    *     greek capital lambda
 21     0x15     Ù    *     greek capital omega
 22     0x16     Ð    *     greek capital pi
 23     0x17     Ø    *     greek capital psi
 24     0x18     Ó    *     greek capital sigma
 25     0x19     È    *     greek capital theta
 26     0x1a     Î    *     greek capital xi
 27     0x1b          *     GSM extension table select 1
 ------------------subtable 1 start---------------------
   20	  0x14   ^    *     
   27	  0x1b        *     GSM extension table select 2
   ----------------subtable 2 start---------------------
   ----------------subtable 2 end  ---------------------
   40     0x28   {    *     
   41	  0x29   }    *     
   47     0x2f   \    *     
   60	  0x3c   [    *     
   61	  0x3d   ~    *     
   62	  0x3e   ]    *     
   64	  0x40   |    *     vertical line
  101	  0x65   ¤    *     EuroSign
 ------------------subtable 1 end  ---------------------
 28     0x1c     Æ    *     capital special char AE
 29     0x1d     æ    *     small special char ae
 30     0x1e     ß    *     german letter sharp s (sz)
 31     0x1f     É    *     capital letter e with acute

 32     0x20                space
 33     0x21     !          exclamation mark
 34     0x22     "          quote
 35     0x23     #          ???
 36     0x24     ¤    *     currency sign (translated to ° in SCMxx !!!)
 37     0x25     %          percent
 38     0x26     &          and
 39     0x27     '          apostroph
 40     0x28     (          opening bracket
 41     0x29     )          closing bracket
 42     0x2a     *          multiplier
 43     0x2b     +          plus
 44     0x2c     ,          comma
 45     0x2d     -          minus
 46     0x2e     .          dot
 47     0x2f     /          slash

 48     0x30     0          number zero
 49     0x31     1          number one
 50     0x32     2          number two
 51     0x33     3          number three
 52     0x34     4          number four
 53     0x35     5          number five
 54     0x36     6          number six
 55     0x37     7          number seven
 56     0x38     8          number eight
 57     0x39     9          number nine
 58     0x3a     :          double point
 59     0x3b     ;          symicolon
 60     0x3c     <          arrow left
 61     0x3d     =          equal
 62     0x3e     >          arrow right
 63     0x3f     ?          question mark

 64     0x40     ¡    *     inverted exclamation mark
 65     0x41     A          capital letter a
 66     0x42     B          capital letter b
 67     0x43     C          capital letter c
 68     0x44     D          capital letter d
 69     0x45     E          capital letter d
 70     0x46     F          capital letter e
 71     0x47     G          capital letter g
 72     0x48     H          capital letter h
 73     0x49     I          capital letter i
 74     0x4a     J          capital letter j
 75     0x4b     K          capital letter k
 76     0x4c     L          capital letter l
 77     0x4d     M          capital letter m
 78     0x4e     N          capital letter n
 79     0x4f     O          capital letter o

 80     0x50     P          capital letter p
 81     0x51     Q          capital letter q
 82     0x52     R          capital letter r
 83     0x53     S          capital letter s
 84     0x54     T          capital letter t
 85     0x55     U          capital letter u
 86     0x56     V          capital letter v
 87     0x57     W          capital letter w
 88     0x58     X          capital letter x
 89     0x59     Y          capital letter y
 90     0x5a     Z          capital letter z
 91     0x5b     Ä    *     capital german letter ae (or "a)
 92     0x5c     Ö    *     capital german letter oe (or "o)
 93     0x5d     Ñ    *     capital letter n with tilde
 94     0x5e     Ü    *     capital german letter ue (or "u)
 95     0x5f     §    *     section sign

 96     0x60     ¿    *     inverted question mark
 97     0x61     a          small letter a
 98     0x62     b          small letter b
 99     0x63     c          small letter c
100     0x64     d          small letter d
101     0x65     e          small letter e
102     0x66     f          small letter f
103     0x67     g          small letter g
104     0x68     h          small letter h
105     0x69     i          small letter i
106     0x6a     j          small letter j
107     0x6b     k          small letter k
108     0x6c     l          small letter l
109     0x6d     m          small letter m
110     0x6e     n          small letter n
111     0x6f     o          small letter o

112     0x70     p          small letter p
113     0x71     q          small letter q
114     0x72     r          small letter r
115     0x73     s          small letter s
116     0x74     t          small letter t
117     0x75     u          small letter u
118     0x76     v          small letter v
119     0x77     w          small letter w
120     0x78     x          small letter x
121     0x79     y          small letter y
122     0x7a     z          small letter z
123     0x7b     ä    *     small german letter ae (or "a)
124     0x7c     ö    *     small german letter oe (or "o)
125     0x7d     ñ    *     small letter n with tilde
126     0x7e     ü    *     small german letter ue (or "u)
127     0x7f     à    *     small letter a with grave
