Character Encoding

 

GSM 03.38 character set

http://www.csoft.co.uk/sms/character_sets/gsm.htm

 

ASCII
GSM 03.38
Unicode
HTTP encoding

 

Unicode

http://www.unicode.org/

 

HTTP encoding of special characters

Why encode?

If you are sending messages to the It's Arrived server using the "HTTP to SMS" API then the following special characters need to be treated specially in your HTTP POST:

These special characters must be encoded in HTTP POST submissions

Character Description Encode as CR Carriage Return %0D LF Line Feed %0A SP Space %20 " quotation mark %22 # hash %23 % percent %25 & ampersand %26 , comma %2C . period %2E / forward slash %2F : colon %3A ; semi-colon %3B < less than %3C = equal %3D > greater than %3E ? question mark %3F ¡ inverted exclamation mark %A1 £ Pound %A3 # currency sign %A4 ¥ Yen %A5 § paragraph sign %A7

Character Description Encode as Ä capital A with diaeresis %C4 Å capital A with ring %C5 à small a grave %E0 ä small a with diaeresis %E4 å small a with ring %E5 Æ capital diphthong AE %C6 Ç capital C cedilla %C7 É capital E acute %C9 è small e grave %E8 é small e acute %E9 ì small i grave %EC Ñ capital N with tilde %D1 ñ small n with tilde %F1 ò small o grave %F2 ö small o with diaeresis %F6 Ø capital O with storke %D8 Ö capital O with diaeresis %D6 Ü capital U with diaeresis %DC ù small u grave %F9 ü small u with diaeresis %FC ß small s sharp %DF

The characters shown below cannot be sent to mobile/cell phones unless those phones support Unicode. Most European and American phones don't support Unicode. Character Description [ left square bracket / back slash ] right square bracket ^ caret ` grave accent { left curly brace | pipe or vertical bar } right curly brace ~ tilde DEL Delete

 

 

 

 

GSM 03.38 character set

The GSM 03.38 Default Character Set

Dec		0	16	32	48	64	80	96	112
	Hex	0	10	20	30	40	50	60	70
0	0	@	Δ	SP	0	¡	P		p
1	1	£	_	!	1	A	Q	a	q
2	2	$	Φ	"	2	B	R	b	r
3	3	¥	Γ	#	3	C	S	c	s
4	4	è	Λ	¤	4	D	T	d	t
5	5	é	Ω	%	5	E	U	e	u
6	6	ù	Π	&	6	F	V	f	v
7	7	ì	Ψ	'	7	G	W	g	w
8	8	ò	Σ	(	8	H	X	h	x
9	9	Ç	Θ	)	9	I	Y	i	y
10	A	LF	Ξ	*	:	J	Z	j	z
11	B	Ø	<ESC>	+	;	K	Ä	k	ä
12	C	ø	Æ	,	<	L	Ö	l	ö
13	D	CR	æ	-	=	M	Ñ	m	ñ
14	E	Å		.	>	N	Ü	n	ü
15	F	å	É	/	?	O	§	o	à

Some additional characters can be sent using the <ESC> code in the above table plus an additonal character

Sending additional characters on GSM phones

You want to send ASCII				Send the following
Character	Decimal	Hex		Characters	Hex	Decimal
€				<ESC> e	1B 65	27 101
<FF>	10	0C		<ESC> <LF>	1B 0A	27 10
[	91	5B		<ESC> <	1B 3C	27 60
/	92	5C		<ESC> /	1B 2F	27 47
]	93	5D		<ESC> >	1B 3E	27 62
^	94	5E		<ESC> ^	1B 14	27 20
{	123	7B		<ESC> (	1B 28	27 40
|	124	7C		<ESC> @	1B 40	27 64
}	125	7A		<ESC> )	1B 29	27 41
~	126	7E		<ESC> =	1B 3D	27 61

This table shows the default GSM character set, but does not indicate how to encode the characters when you wish to send them in an HTTP POST message. See Character Encoding for that information.