SMS Length And Billing

Overview

An SMS will be billed as follows:

0 – 160 characters = 1 SMS (1 credit)
161 – 306 characters = 2 SMSs (2 credits)
307 - 459 characters = 3 SMSs (3 credits)

Calculation

To determine the length of the SMS and how many SMSes will be billed, the following calculation applies:

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)

Example:

Total length of characters is 340. Total length once we count the double characters. eg: “``”, 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.

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Please note:

The above calculation only applies if the SMS is greater than 160 characters in length.

Maximum SMS length is 459 characters.

SMSes longer than one SMS, i.e. 160 characters, in length are concatenated and display on the phone as one SMS.

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

Updated 11 days ago