GSM characters accepted for sending SMS messages

smsmode© features

The features
for sending SMS

A set of practical sheets to discover and master all the features of creating and optimizing your SMS campaigns.

GSM characters accepted

FOR SENDING SMS

You will find below all the characters supported by the telecom operators and in particular our solution of sending message smsmode©. The restrictions of characters do not come from our service but from the harmonization of the GSM standard to make universal the SMS service or Text Message in English. Other types of limits can exist according to the operator and the material used by your recipient.

How many characters for my SMS?

The size of your text, i.e. the number of characters in your message, depends on the encoding of your text message chosen when you send SMS messages:

SMS in normal ISO-8859-15 encoding: maximum 160 characters per SMS, then automatic concatenation of the text on the user's device up to 5 concatenated SMS,
Unicode SMS: 70 characters maximum, the cost of 1 SMS sent per recipient every 70 characters and it allows to manage all Unicode characters, including emoticons.

What are the specificities for "special" characters?

Les caractères suivants comptent double pour le calcul de la taille de votre texte :
{ } € [ ] ~ ^ ¨ | €
Pour plus de détails, nous vous invitons à consulter le tableau ci-dessous.

There are also "substitutable" characters, such as ç, ê, ë or ô, which do not exist in GSM characters.
Unless you take action to the contrary or send them in Unicode, they will be automatically replaced in your SMS.

If you specify a character that is not present in the list, it will be replaced by"?".

GOOD PRACTICE

Before sending a massive SMS campaign through our API or Customer Centre (HMI) solutions, we advise you to always send a test SMS so that you can validate the encoding of your text message and check that the special characters are identical to your initial request.

LIST OF
GSM CHARACTERS AND THEIR ENCODING

CHARACTERISTICS	ISO CODE 8859-15
New line	%OA
Back to cart	%OD
Space	+
!	%21
"	%22
#	%23
$	%24
%	%25
&	%26
‘	%27
(	%28
)	%29
*	*
+	%2B
,	%2C
–	–
.	.
/	%2F
{	%7B*
\|	%7C*
}	%7D*
~	%7E*
[	%5B*
\	%5C*
]	%5D*
^	%5E*
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
:	%3A
;	%3B
<	%3C
=	%3D
>	%3E
?	%3F
@	%40

CHARACTERISTICS	ISO CODE 8859-15
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	P
Q	Q
R	R
S	S
T	T
U	U
V	V
W	W
X	X
Y	Y
Z	Z
_	_
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	p

CHARACTERISTICS	ISO CODE 8859-15
q	q
r	r
s	s
t	t
u	u
v	v
w	w
x	x
y	y
z	z
¡	%A1
£	%A3
€	%A4
¥	%A5
§	%A7
¿	%BF
Ä	%C4
Å	%C5
Æ	%C6
Ç	%C7
È	%C8
É	%C9
Ñ	%D1
Ö	%D6
Ø	%D8
Ü	%DC
ß	%DF
à	%E0
ä	%E4
å	%E5
æ	%E6
è	%E8
é	%E9
ì	%EC
ñ	%F1
ò	%F2
ö	%F6
ø	%F8
ù	%F9
Ü	%FC
€	%80*

* These characters count double.

REMINDER
WHAT IS THE GSM STANDARD?

The GSM (Global System for Mobile communication) standard is a standard for mobile telephony, including the sending of SMS (Short Message Service). It is used all over the world to manage the different encodings. Of European origin, this standard has conquered the world with its performance. It was created to manage the multiplicity of mobile devices that can receive calls and SMS. The emergence and disappearance of telephone operators, the arrival of new digital and analogue transmission techniques require compliance with a standard where characters are encoded in GSM-7. This encoding makes communication between several terminals universal.

Need more info?
Do not hesitate to contact us.

CHARACTERISTICS	ISO CODE 8859-15
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	P
Q	Q
R	R
S	S
T	T
U	U
V	V
W	W
X	X
Y	Y
Z	Z
_	_
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	p

CHARACTERISTICS	ISO CODE 8859-15
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	P
Q	Q
R	R
S	S
T	T
U	U
V	V
W	W
X	X
Y	Y
Z	Z
_	_
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	p