Filed by Alcatel Pursuant to Rule 425 under the Securities Act of 1933 And Deemed Filed Pursuant to Rule 14a-12 Under the Securities Exchange Act of 1934 Subject Company: Lucent Technologies, Inc. Commission File No. 001-11639 The Agreement and Plan of Merger, dated April 2, 2006, by and between Alcatel and Lucent Technologies, Inc., was filed by Alcatel under cover of Form 6-K today and is incorporated by reference into this filing.