SMS Character Calculator

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Encoding Chars Used Chars Remaining No of SMS Chars in SMS
7bit 0 160 1 160

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   -  Regular 7bit character, present in GSM charset
ESC  -  Escape character 0x1B; required to access |^{}[]~characters
   -  User Defined Header (UDH) of the message. Required for multipart sms
   -  Character present in GSM charset, encoded as Unicode character
   -  Character not present in GSM charset, forces to use Unicode encoding
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