Help Center> Message & SMS> FAQs> Troubleshooting> Why Is the SMS Quantity on the Console Two Times of the Recipient Number Quantity?
Updated on 2023-04-12 GMT+08:00
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Why Is the SMS Quantity on the Console Two Times of the Recipient Number Quantity?

The SMS message is split into multiple SMS messages because the original SMS message is too long. (SMS messages with the same SMS ID in the status report are the same SMS message.) The rules for splitting a long SMS are as follows:

  • Each template can contain a maximum of 500 characters. The maximum length of each SMS message is SMS signature length pulsing 500 characters.
  • When an SMS message longer than the allowed length is sent, the customer receives one SMS message. The Message & SMS platform automatically splits this SMS message into multiple shorter SMS messages based on preset rules for service statistics collection and charging.

SMS Type

Character Counting Rule

Remarks

International SMSs (sent to mobile numbers outside the Chinese mainland)

SMSs in English:

  • GSM-7 characters are used for counting.
  • If an SMS contains 160 characters or less, it is counted as one SMS.

    If an SMS contains more than 160 characters, every 153 characters are counted as one SMS.
  • If an SMS contains 158 English characters, it is counted as one SMS. If an SMS contains 164 (153 + 11) characters, it is counted as two SMSs. If an SMS contains 320 (153 + 153 + 14) characters, it is counted as three SMSs.
  • For example, if an SMS template contains variable ${NUM_8} set to 123456, that variable is counted as six characters.

SMSs in other languages:

  • Each Unicode character, such as a letter, digit, punctuation (full-width and half-width), and space, is counted as one character.
  • If an SMS contains 70 characters or less, it is counted as one SMS.

    If an SMS contains more than 70 characters, every 67 characters are counted as one SMS.

Chinese Mainland SMSs (sent to phone numbers in the Chinese mainland)
  • Each Unicode character, such as a letter, digit, punctuation (full-width and half-width), and space, is counted as one character.
  • The length of an SMS equals the total length of the SMS template and the signature.
  • If an SMS contains 70 characters or less, it is counted as one SMS.

    If an SMS contains more than 70 characters, every 67 characters are counted as one SMS.
  • Each letter and digit in a signature is counted as a character. For example, [HUAWEI] is counted as eight characters.
  • For example, if an SMS template contains variable ${NUM_8} set to 123456, that variable is counted as six characters.
Table 1 GSM-7 characters

Category

Counting Rule

Specific Characters

Standard characters

Each is counted as one character.

! " # $ % ' ( ) * + , - . / : ; < = > ? @ _ ¡ £ ¥ § ¿ & ¤

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

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

Ä 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

Extension characters

Each is counted as two characters.

| ^ € { } [ ] ~ \
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