UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, D.C. 20549

                                   FORM N-PX

    ANNUAL REPORT OF PROXY VOTING RECORD OF REGISTERED MANAGEMENT INVESTMENT
                                     COMPANY

 INVESTMENT COMPANY ACT FILE NUMBER:     811-21080

 NAME OF REGISTRANT:                     CALAMOS CONVERTIBLE OPPORTUNITIES
                                         & INCOME FUND



 ADDRESS OF PRINCIPAL EXECUTIVE OFFICES: 2020 Calamos Court
                                         Naperville, IL 60563     

 NAME AND ADDRESS OF AGENT FOR SERVICE:  James S. Hamman, Jr., Secretary
                                         2020 Calamos Court
                                         Naperville, IL 60563     

 REGISTRANT'S TELEPHONE NUMBER:          (630) 245-7200 

 DATE OF FISCAL YEAR END:                10/31

 DATE OF REPORTING PERIOD:               07/01/2004 - 06/30/2005





                                                                                                  

Calamos Convertible Opportunities & Income Fund
--------------------------------------------------------------------------------------------------------------------------
 The fund held no voting securities during the reporting period and did not vote any securities or have
 any securities that were subject to a vote during the reporting period.







SIGNATURES

Pursuant to the requirements of the Investment Company Act of 1940, the
registrant has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.

(Registrant)         CALAMOS CONVERTIBLE OPPORTUNITIES & INCOME FUND
By (Signature)       /s/ John P. Calamos, Sr.
Name                 John P. Calamos, Sr.
Title                President
Date                 08/26/2005