How long sms

UCS-2 messages of more than 70 characters will be split into character segments. Twilio bills for every segment sent, so if you have a message with, say, characters and only one or two of them are UCS-2, you can avoid the cost of the second segement by removing those UCS-2 characters, if you can. The Short Messaging Service SMS is a standardized communication protocol that enables devices to send and receive brief text messages. But things get tricky because GSM-7, the original charater set designed for SMS, can only encompass different characters, thanks to that 7-bit limit.

A common mistake is to inadvertently use a UCS-2 character. We recommend that you check any high-volume messages in our Message Segment calculator before you send them. It will flag any UCS-2 characters so you can remove them and avoid being charged for any extra messages required to segment the source message. The receiving client then has the ability to reassemble the segmented message so that it again appears as a single message on the receiving device.

When a long text message is segmented into multiple physical SMS messages, a special header is added to each physical SMS message so that the receiving client knows that it is a multipart SMS message that must be reassembled by the client.

These headers are known as segmentation or concatenation headers. These headers are placed in the User Data Header UDH field of the message, but they do count against the overall size limit of the message.

If you send a long text message containing only characters that are part of the GSM The most 7-bit characters that can be packed into bits is If you send a long text message that includes any characters that require Unicode encoding, then each SMS segment can contain up to 67 characters. In the GSM character set, the character is represented as a null character. So if your provider truncates your message at the character, try changing your SMSC character set to iso What are branching logic surveys?

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