VoIP (voice over IP)

VoIP (voice over IP) VoIP (voice over IP) is the transmission of voice and multimedia content over Internet Protocol (IP) networks. VoIP is enabled by a group of technologies and methodologies used to deliver voice communications over the internet, enterprise local area networks or wide area networks. VoIP historically referred to using IP to connect private branch exchanges (PBXs), but the term is now used interchangeable with IP telephony. How does VoIP work? VoIP encapsulates audio ...
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DMZ Definition

DMZ Definition DMZ Definition: In computer networks, a DMZ (demilitarized zone) is a physical or logical sub-network that separates an internal local area network (LAN) from other untrusted networks, usually the Internet. External-facing servers, resources and services are located in the DMZ so they are accessible from the Internet but the rest of the internal LAN remains unreachable. This provides an additional layer of security to the LAN as it restricts the ability of hackers to directly...
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