SMS Message Formatting

formatting sms sms-gateway
Stefan picture Stefan · Jun 27, 2011 · Viewed 10.7k times · Source

Could someone in the know tell me what kind of control I have on the formatting of SMS messages?

For example, bold text or carriage returns etc? Carriage return would be most important to me I suppose, is this possible to do and, if so, how?

Answer

Vicky picture Vicky · Jun 27, 2011

Formatting like bold text or italics, in general no - unless some particular SMS providers use a proprietary format for doing this (I'm not aware of any).

Standard SMSes are encoded using the GSM 03.38 7-bit alphabet which does include CR and LF (and FF) characters, but how these are rendered is up to the receiving end. Out of the two implementations I have to hand, both just ignore CR or LF (but one of them renders a line break if the message includes two consecutive spaces).

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