In recent years, firms tend to hold conference call to have more communication with market investors so that to reduce the information asymmetry and the difference between firm’s actual value and market value. Multinational and innovational firms would also tend to have higher information transparency to gain market investor’s recognition. The primary objective of this paper is to study the effect of conference call, self information disclosure, to firm and investors. This study examines the association among conference calls, internationalization on performance and level of innovation. Using a sample of publicly traded firms listed on the Taiwan Stock Exchange from 2009 to 2012, we find that to hold and number of conference calls would positively moderate effect on the relationship of internationalization on performance and company innovation.