EXHIBIT 4.1 AMENDMENT ("Amendment") dated as of July 12, 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 (as amended by the Amendments dated as of...Promissory Note Amendment • July 16th, 2002 • Fibernet Telecom Group Inc\ • Telephone communications (no radiotelephone) • New York
