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3CX is the developer of 3CX Phone System, an open-standards, software based PBX for Windows.
Phone System,Telephone System, Business Phone System, High Speed Internet, IP Phone System, IP Telephone System, SIP Trunks, Local and Long Distance
ATSnexgen Telephone/Phone System Solutions. The IP Experts when it comes to Hosted Telephone System, Data Cabling, Routers & Switches, Internet.
Electronic Voice Services, Inc. (EVS7) started in January 1993 in Dallas, Texas with the focus to develop computer software.