SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-PX ANNUAL REPORT OF PROXY VOTING RECORD OF REGISTERED MANAGEMENT INVESTMENT COMPANIES Investment Company Act file number: 811-07510 ACM Municipal Securities Income Fund, Inc. (Exact name of registrant as specified in charter) Alliance Capital Management L.P. 1345 Avenue of the Americas, New York, New York l0105 (Address of Principal Executive Office) (Zip Code) Registrant's Telephone Number, including Area Code: (800) 221-5672 MARK R. MANLEY Alliance Capital Management L.P. 1345 Avenue of the Americas New York, New York l0105 (Name and address of agent for service) Copies of communications to: Patricia A. Poglinco Seward & Kissel LLP One Battery Park Plaza New York, New York 10004 Date of fiscal year end: October 31 Date of reporting period: July 1, 2005 - June 30, 2006 Item 1. Proxy Voting Record. ******************************* FORM N-Px REPORT ******************************* ICA File Number: 811-07510 Reporting Period: 07/01/2005 - 06/30/2006 ACM Municipal Securities Income Fund, Inc. ================== ACM MUNICIPAL SECURITIES INCOME FUND, INC. ================== The registrant did not receive any proxy solicitations relating to its portfolio securities and, therefore, did not vote any proxies during the reporting period. ========== END NPX REPORT 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: ACM Municipal Securities Income Fund, Inc. By: Marc O. Mayer* ----------------------- Chief Executive Officer Date: August 29, 2006 *By: /s/ Emilie D. Wrapp -------------------- Emilie D. Wrapp Secretary