up to 47 characters, allow digit, '*', and '#' characters and meaning characters that include 'x', '.', '|' and range format characters that include '~', ',' and parenthesis '(', ')' and brackets '[', ']' and at most one parenthesis pair and 'T' for terminate are allowed and two quotation marks means a null pattern for hot dial, examples: '002(x.)', '0(x.)', and '(x.)'