I'm using the Charter font using the following package:
\usepackage[charter]{mathdesign}
I want to have oldstyle (lowercase) numbers in conjunction with this package. I've seen this question but it refers to CM and palatino only. Any way of getting oldstyle numbering (throughout the document) with Charter font?

\oldstylenumsto change to a font you want. – Leo Liu Dec 15 '11 at 14:38