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An Internet telephony system is basically a computer-form of a conventional telephone to support real-time voice communication between two or more users who are connected to the Internet. A wide range of Internet telephony systems are currently marketed. However, most of these systems are developed using proprietary technology. Interoperability between systems from different vendors are not supported...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.