EXHIBIT 6 TO FORM 13D REGISTRATION RIGHTS AGREEMENT REGISTRATION RIGHTS AGREEMENT, dated as of August 3, 2001 (this "Agreement"), by and between NORTEL NETWORKS LLC, a limited liability company organized under the laws of Delaware ("Investor") and...Registration Rights Agreement • August 13th, 2001 • Nortel Networks Corp • Telephone & telegraph apparatus • Delaware
EXHIBIT 1 TO FORM 13D SECOND AMENDED AND RESTATED LIMITED LIABILITY COMPANY AGREEMENTLimited Liability Company Agreement • August 13th, 2001 • Nortel Networks Corp • Telephone & telegraph apparatus • Delaware
