EXHIBIT 10.3 MCI WORLDCOM ON-NET VOICE AGREEMENT This On-Net Voice Agreement ("Agreement") is made between MCI Telecommunications, Inc. ("MCI"), for itself and on behalf of its U.S.-based affiliates (collectively, "MCI WORLDCOM") and Fastnet...Mci Worldcom on-Net Voice Agreement • February 3rd, 2000 • Fastnet Corp • Services-business services, nec
