Generate table of contents when \section* (sections without numbering) has been used

Is it possible just to generate a table of contents based on sections in asterisk mode, i.e., \section*? I basically just want the table of contents without section numbers. Like a list of headings and their associated pages.

The following doesn't generate a ToC:

\documentclass[12pt,a4paper]{article}\begin{document}\tableofcontents\subsection*{Section 1}\subsection*{Section 2}\end{document}