Tencent Cloud has adjusted the calculation rule for global SMS message length, which took effect on March 2, 2020. The calculation rule after adjustment is as follows:
SMS containing only English characters
A standard GSM character is calculated as 1 character, while an extended GSM character is calculated as 2 characters.
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Standard characters | ! " # $ % ' ( ) * + , - . / : ; < = > ? @ _ ¡ £ ¥ § ¿ & ¤0 1 2 3 4 5 6 7 8 9A B C D E F G H I J K L M N O P Q R S T U V W X Y Za b c d e f g h i j k l m n o p q r s t u v w x y zÄ Å Æ Ç É Ñ Ø ø Ü ß Ö à ä å æ è é ì ñ ò ö ù ü Δ Φ Γ Λ Ω Π Ψ Σ Θ Ξ |
Extended characters | | ^ € { } [ ] ~ \\ |
If an SMS message contains 160 characters or less, it will be billed as one message; otherwise, it will be billed as multiple messages based on the standard of 153 characters per message.
For example, if an SMS message contains 320 characters, it will be billed as 3 messages (153 + 153 + 14 characters).
SMS containing non-English characters
One Chinese character, letter, digit, punctuation mark (both fullwidth and halfwidth forms), or space will be calculated as 1 character.
If an SMS message contains 70 characters or less, it will be billed as one message; otherwise, it will be billed as multiple messages based on the standard of 67 characters per message.For example, if an SMS message contains 150 characters, it will be billed as 3 messages (67 + 67 + 16 characters).