How can one listen to conference calls on companies in which you are interested in investing?

Jim Cramer suggests you listen to conference calls as homework before making stock investments. Are these put on the internet, tv? I have never heard one on tv.

You can find them in the Yahoo Finance area.

Check the Investor Relations section of the company's website. They will usually provide the phone number to call in on the day of the conference call.

EDIT: A Conference Call is the technical term for when an SEC registered corporation announces quarterly results. It is not anything secretive.

Sounds like industrial espionage.

Some corporations have webcast and conference calls in there Investor Relations section of their website. Like this one for example http://www.sony.net/SonyInfo/IR/stock/Me...