According to the BLS, the average secondary school teacher in the U.S. earns an annual salary of $56,760. A 40-hour work week employee would have to earn $27.28 per hour to earn as much over the course of a year. In some areas, teacher's unions enter into collective bargaining agreements with school districts.
Definition - What does Voice Over Internet Protocol (VoIP) mean? Voice over Internet Protocol (VoIP) is a technology used for delivering different kinds of data from a source to a destination using IP (Internet Protocol). The data may be in many forms, including files, voice communication, pictures, fax or multimedia messages.
Definition of:IP telephony. The two-way transmission of voice over a packet-switched IP network, which is part of the TCP/IP protocol suite. The terms IP telephony and voice over IP (VoIP) are synonymous. However, the term VoIP is widely used for the actual services offered (see VoIP for more details), while IP telephony often refers to the technology behind it. In addition, IP telephony is an umbrella term for all real-time applications over IP, including voice over instant messaging (IM) and videoconferencing.