AmongAgreement and Plan of Merger • April 22nd, 2003 • MCK Communications Inc • Telephone & telegraph apparatus • Delaware
FIRST AMENDMENT TO AGREEMENT AND PLAN OF MERGER THIS FIRST AMENDMENT (the "AMENDMENT") to the Agreement and Plan of Merger (the "MERGER AGREEMENT;" capitalized terms used but not defined herein shall have the meanings ascribed to them therein), dated...Agreement and Plan of Merger • April 22nd, 2003 • MCK Communications Inc • Telephone & telegraph apparatus • Delaware
