Documentation


GSM 03.38

The following table shows which characters are available in the GSM 03.38 character set. For maximum control over how your SMS will be formatted you should stick to using only these characters. Note the characters in the bottom half of the table require 2 bytes to encode and therefore count as double when calculating the 160 character limit per MT SMS.
Further information can be found at

  • http://en.wikipedia.org/wiki/GSM_03.38
  • http://www.unicode.org/Public/MAPPINGS/ETSI/GSM0338.TXT