SMS Character Set Compatibility

The list of supported characters is part of the GSM 7-bit default alphabet, which can be found here:

HEX	Character Name.	Character	ISO-8859-1 Hex
0x00	COMMERCIAL AT	@	40
0x01	POUND SIGN	£	A3
0x02	DOLLAR SIGN	$	24
0x03	YEN SIGN	¥	A5
0x04	LATIN SMALL LETTER E WITH GRAVE	è	E8
0x05	LATIN SMALL LETTER E WITH ACUTE	é	E9
0x06	LATIN SMALL LETTER U WITH GRAVE	ù	F9
0x07	LATIN SMALL LETTER I WITH GRAVE	ì	EC
0x08	LATIN SMALL LETTER O WITH GRAVE	ò	F2
0x09	LATIN SMALL LETTER C WITH CEDILLA	Ç	C7
0x0A	LINE FEED		0A
0x0B	LATIN CAPITAL LETTER O WITH STROKE	Ø	D8
0x0C	LATIN SMALL LETTER O WITH STROKE	ø	F8
0x0D	CARRIAGE RETURN		0D
0x0E	LATIN CAPITAL LETTER A WITH RING ABOVE	Å	C5
0x0F	LATIN SMALL LETTER A WITH RING ABOVE	å	E5
0x10	GREEK CAPITAL LETTER DELTA	Δ
0x11	LOW LINE	_	5F
0x12	GREEK CAPITAL LETTER PHI	Φ
0x13	GREEK CAPITAL LETTER GAMMA	Γ
0x14	GREEK CAPITAL LETTER LAMBDA	Λ
0x15	GREEK CAPITAL LETTER OMEGA	Ω
0x16	GREEK CAPITAL LETTER PI	Π
0x17	GREEK CAPITAL LETTER PSI	Ψ
0x18	GREEK CAPITAL LETTER SIGMA	Σ
0x19	GREEK CAPITAL LETTER THETA	Θ
0x1A	GREEK CAPITAL LETTER XI	Ξ
0x1B	ESCAPE TO EXTENSION TABLE
0x1B0A	CIRCUMFLEX ACCENT	^	5E
0x1B14	LEFT CURLY BRACKET	{	7B
0x1B28	RIGHT CURLY BRACKET	}	7D
0x1B29	REVERSE SOLIDUS (BACKSLASH)	\	5C
0x1B2F	LEFT SQUARE BRACKET	[	5B
0x1B3C	TILDE	~	7E
0x1B3D	RIGHT SQUARE BRACKET	]	5D
0x1B40	VERTICAL BAR	\|	7C
0x1B65	EURO SIGN	€	A4
0x1C	LATIN CAPITAL LETTER AE	Æ	C6
0x1D	LATIN SMALL LETTER AE	æ	E6
0x1E	LATIN SMALL LETTER SHARP S (German)	ß	DF
0x1F	LATIN CAPITAL LETTER E WITH ACUTE	É	C9
0x20	SPACE		20
0x21	EXCLAMATION MARK	!	21
0x22	QUOTATION MARK	“	22
0x23	NUMBER SIGN	#	23
0x24	DOLLAR SIGN	$	24
0x25	PERCENT SIGN	%	25
0x26	AMPERSAND	&	26
0x27	APOSTROPHE	‘	27
0x28	LEFT PARENTHESIS	(	28
0x29	RIGHT PARENTHESIS	)	29
0x2A	ASTERISK	*	2A
0x2B	PLUS SIGN	+	2B
0x2C	COMMA	,	2C
0x2D	HYPHEN-MINUS	-	2D
0x2E	FULL STOP	.	2E
0x2F	SOLIDUS (SLASH)	/	2F
0x30	DIGIT ZERO	0	30
0x31	DIGIT ONE	1	31
0x32	DIGIT TWO	2	32
0x33	DIGIT THREE	3	33
0x34	DIGIT FOUR	4	34
0x35	DIGIT FIVE	5	35
0x36	DIGIT SIX	6	36
0x37	DIGIT SEVEN	7	37
0x38	DIGIT EIGHT	8	38
0x39	DIGIT NINE	9	39
0x3A	COLON	:	3A
0x3B	SEMICOLON	;	3B
0x3C	LESS-THAN SIGN	<	3C
0x3D	EQUALS SIGN	=	3D
0x3E	GREATER-THAN SIGN	>	3E
0x3F	QUESTION MARK	?	3F
0x40	INVERTED EXCLAMATION MARK	¡	A1
0x41	LATIN CAPITAL LETTER A	A	41
0x42	LATIN CAPITAL LETTER B	B	42
0x43	LATIN CAPITAL LETTER C	C	43
0x44	LATIN CAPITAL LETTER D	D	44
0x45	LATIN CAPITAL LETTER E	E	45
0x46	LATIN CAPITAL LETTER F	F	46
0x47	LATIN CAPITAL LETTER G	G	47
0x48	LATIN CAPITAL LETTER H	H	48
0x49	LATIN CAPITAL LETTER I	I	49
0x4A	LATIN CAPITAL LETTER J	J	4A
0x4B	LATIN CAPITAL LETTER K	K	4B
0x4C	LATIN CAPITAL LETTER L	L	4C
0x4D	LATIN CAPITAL LETTER M	M	4D
0x4E	LATIN CAPITAL LETTER N	N	4E
0x4F	LATIN CAPITAL LETTER O	O	4F
0x50	LATIN CAPITAL LETTER P	P	50
0x51	LATIN CAPITAL LETTER Q	Q	51
0x52	LATIN CAPITAL LETTER R	R	52
0x53	LATIN CAPITAL LETTER S	S	53
0x54	LATIN CAPITAL LETTER T	T	54
0x55	LATIN CAPITAL LETTER U	U	55
0x56	LATIN CAPITAL LETTER V	V	56
0x57	LATIN CAPITAL LETTER W	W	57
0x58	LATIN CAPITAL LETTER X	X	58
0x59	LATIN CAPITAL LETTER Y	Y	59
0x5A	LATIN CAPITAL LETTER Z	Z	5A
0x5B	LATIN CAPITAL LETTER A WITH DIAERESIS	Ä	C4
0x5C	LATIN CAPITAL LETTER O WITH DIAERESIS	Ö	D6
0x5D	LATIN CAPITAL LETTER N WITH TILDE	Ñ	D1
0x5E	LATIN CAPITAL LETTER U WITH DIAERESIS	Ü	DC
0x5F	SECTION SIGN	§	A7
0x60	INVERTED QUESTION MARK	¿	BF
0x61	LATIN SMALL LETTER A	a	61
0x62	LATIN SMALL LETTER B	b	62
0x63	LATIN SMALL LETTER C	c	63
0x64	LATIN SMALL LETTER D	d	64
0x65	LATIN SMALL LETTER E	e	65
0x66	LATIN SMALL LETTER F	f	66
0x67	LATIN SMALL LETTER G	g	67
0x68	LATIN SMALL LETTER H	h	68
0x69	LATIN SMALL LETTER I	i	69
0x6A	LATIN SMALL LETTER J	j	6A
0x6B	LATIN SMALL LETTER K	k	6B
0x6C	LATIN SMALL LETTER L	l	6C
0x6D	LATIN SMALL LETTER M	m	6D
0x6E	LATIN SMALL LETTER N	n	6E
0x6F	LATIN SMALL LETTER O	o	6F
0x70	LATIN SMALL LETTER P	p	70
0x71	LATIN SMALL LETTER Q	q	71
0x72	LATIN SMALL LETTER R	r	72
0x73	LATIN SMALL LETTER S	s	73
0x74	LATIN SMALL LETTER T	t	74
0x75	LATIN SMALL LETTER U	u	75
0x76	LATIN SMALL LETTER V	v	76
0x77	LATIN SMALL LETTER W	w	77
0x78	LATIN SMALL LETTER X	x	78
0x79	LATIN SMALL LETTER Y	y	79
0x7A	LATIN SMALL LETTER Z	z	7A
0x7B	LATIN SMALL LETTER A WITH DIAERESIS	ä	E4
0x7C	LATIN SMALL LETTER O WITH DIAERESIS	ö	F6
0x7D	LATIN SMALL LETTER N WITH TILDE	ñ	F1
0x7E	LATIN SMALL LETTER U WITH DIAERESIS	ü	FC
0x7F	LATIN SMALL LETTER U WITH GRAVE	à	E0

Certain characters in the GSM 7-bit are 14-bit, and therefore count as double in the length of the SMS. These include:

Character
^
{
}
\
[
~
]
\|
€

FTP Character Set Compatibility

Text file encoding varies significantly depending on how the file was generated. As a result, not all characters are supported. All files uploaded to the FTP support some of the basic GSM 7-bit character set. The supported characters are tabled below.

Character	Character	Character
Space	@	a
!	A	b
“	B	c
#	C	d
$	D	e
%	E	f
&	F	g
‘	G	h
(	H	i
)	I	j
*	J	k
+	K	l
,	L	m
-	M	n
.	N	o
/	O	p
0	P	q
1	Q	r
2	R	s
3	S	t
4	T	u
5	U	v
6	V	w
7	W	x
8	X	y
9	Y	z
:	Z	{
;	[	\|
<	\	}
=	]	~
>	^
?	*

SMS Length and Billing

To determine the length of the SMS and how many SMSes will be billed, the following calculation applies. Note: The below calculation only applies if the SMS is greater than 160 characters in length.

Key:
x = Number of characters (taking into account 7-bit and 14-bit)
Math.Ceiling = Rounds up to the next full integer
y = Number of SMSes to be billed
Calculation: y = Math.Ceiling(x / 153)

Maximum SMS length is 459 characters. SMSes longer than one SMS in length are concatenated and display on the phone as one SMS.

Example:

Total length of characters is 340.
Total length once we count the double characters (e.g., “”) is 344.
Divide this by 153 (344 / 153 = 2.248) and take the upper bound (Ceiling) of 2.248 to equal 3.
SMS will be billed as 3 SMSes.

Note:

Anything longer than 459 characters will be truncated and billed as 3 SMSes.

SMS Line Breaks

Line breaks can be added into the SMS by using the pipe character.