What is the SMS character limit technically?

SMS Size: SMS shall be a set of systematized textual and numeric characters (text), transmitted to the mobile end-users up to 160 characters when using the Latin alphabet (Latin 1 (ISO-8859-1) 7bit) or 70 characters when using Cyrillic alphabet (UCS2 (ISO/IEC-10646) 16-bit) in length. If the length of the text is greater than the above number of characters, the SMS shall be deemed one (1) part of the text up to 153 characters (when using the Latin alphabet) or 67 characters (when using the Cyrillic alphabet) in length. If the text of an SMS message contains textual and numeric characters of Latin and Cyrillic alphabets, the SMS message shall be deemed to have been sent in the Cyrillic alphabet