former telecommunications and networking company
Acquired by WorldCom
MCI Communications Corporation
Conferencing, Contact Centers, Data and IP Services, Internet access, IT Solutions and Hosting, Managed Networks, Premises Equipment , Security, Voice, VoIP, Wireless
Mci logo.svg
société de télécommunication américaine
Washington, D.C., U.S.
Worldcom
MCI WorldCom
MCI Communications
WorldCom
世通公司
MCI (기업)
MCI (電気通信事業者)
MCI
MCI Inc.