Exhibit 4.1 AMENDMENT ("Amendment") dated as of June 14, 2002 between FIBERNET TELECOM GROUP, INC. ("Company") and SDS MERCHANT FUND, L.P. ("SDS") to that certain Promissory Note dated as of March 14, 2002 (the "Note") by and between the Company and...Promissory Note Amendment • June 17th, 2002 • Fibernet Telecom Group Inc\ • Telephone communications (no radiotelephone) • New York
