In 2013, the German national body submitted a Unicode Technical Committee proposal to align the Unicode reference glyphs with the ITU specifications for these symbols, and annotate them as telephone keypad symbols on the code charts. (Unicode 12.1), these changes have not been accepted/implemented.
In 2013 the German national body submitted a U:nicode Technical Committee proposal to align the Unicode reference glyphs with the ITU specifications for these symbols and annotate them as telephone keypad symbols on the code charts (Unicode 121) these changes have not been accepted/implemented