The Developer Hub

Welcome to the Developer Documentation Hub. You'll find comprehensive guides and documentation to help you start working with SMS,Voice, 2FA, VMN, SMPP and Outbound Dialing Documentation as quickly as possible, as well as support if you get stuck. Let's jump right in!

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Supported Character Sets

Simplifying the concept of "Character Sets"

GSM 03.38 Encoding

The standard SMS mobile-phone character set is used universally to send text messages. The standard character set allows few of the Roman alphabet and the most common accented forms, certain special characters, and few Greek alphabets that sum up to 160 characters. It includes the following characters:

Extended character counts in SMS

Note: All extended characters will take two characters to send.


@ £ \ $ ¥ è é ù ì ò Ç \ n Ø ø \ r Å å ? _ F " ? O ? ? S T ? Æ æ ß É ! \ " # ¤ % & ' ( ) * + , - ../ 0 1 2 3 4 5 6 7 8 9 : ; < = > ? ¡ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ? Ö Ñ Ü § ¿ a b c d e f g h I j k l m n o p q r s t u v w x y z ö ñ ü à ä Ä { } \ ~ [ ] |

£ ¥ è é ù ì ò Ç Ø ø Å å Δ Φ Γ Λ Ω Π Ψ Σ Θ Ξ Æ æ ß É ¤ ¡ Ä Ö Ñ Ü § ¿ ä ö ñ ü à

Note: Extended character like € takes three characters to send.


What's Next

Read out how the Message Length is considered for sending an SMS, in the next page

Multi Part Messages & Concatenation