An SMS message has a maximum length of 140 bytes. By using a 7 bit character set it is possible to have up to 160 characters in a single SMS. A text that contains more than 160 characters must be split into multiple 140 byte message parts. When a message is split into multiple SMS, each part must include a header to indicate that it is a concatenated message.
This header has a minimum length of 6 bytes, which leaves us with 134 bytes in each part, or 153 characters when using the 7 bit character set. If a message contains characters that are not in the default 7 bit character set, UTF16 encoding is used. UTF16 requires a minimum of 2 bytes per character, which leaves us with only 70 characters.
Some Notes About SMS
In a single part SMS, or 67 characters in each part bulk sms master of a concatenated SMS. Some characters, like emojis etch, will occupy 4 bytes. The 7 bit character set also includes a few characters that require an escape character and will therefore occupy 2 character slots.
A multipart SMS message using the 7 bit character set may not be split so that the escape character and the following character end up in separate parts. A multipart SMS message using UTF16 encoding may not be split so that parts of a character end up in separate message parts.
NOTE: The SMS standard states that UCS2 character Bulk SMS Service encoding should be used for the fixed-length 16-bit encoding. This character encoding does not support emojis (and characters from other supplementary planes), and has largely been replaced by UTF16 in the real world.
Source Code
Source code for counting the number of characters and message parts a string will need can be found at
Disclaimer
While this utility tries to match, as closely as possible, the way messages are handled internally by the TeletopiaSMS gateway, we provide points of reflection encouraging no guarantee that this is the case. The results displayed on this page should be viewed simply as an illustration of how text is converted into SMS messages.
The utility, including the source code listed above, is provided “AS IS”. We disclaim all implied warranties including, without limitation, any implied warranties of merchantability or of fitness for a particular purpose.
A Few Remarks Regarding SMS
The maximum size of an SMS message is 140 bytes. A single SMS can include up to 160 characters if a 7-bit character set is used. If a text message has more than 160 characters, it must be divided into many 140-byte segments. Each component of a message that is divided into many SMS must have a header identifying it as a concatenated message.
Since this header must be at least 6 bytes long, each section will have 134 bytes, or 153 characters when using the 7-bit character set. UTF16 encoding bz lists is used when a message contains characters that are not part of the standard 7-bit character seta Few Remarks Regarding SMS
An SMS message contains.
Is it simply transmitting information, or promoting merchant offers? In fact, these are all
thinking about things from the perspective of merchants, not consumers. What consumers
are really interested in valuable information that is useful to them!
Learning objectives:
- Set up group messaging to chat with a large number of friends at once
- Understand mass messaging strategies and the design of message content copywriting
- Create messages that interest your friends
As a marketing editor of a business
Have you ever used the “group messaging (also known as: push)” function to achieve diffuse
publicity and establish relationships with friends? The group messaging function is the most
powerful advertising tool for official accounts.
