The Open Systems Interconnection (OSI) Model is a conceptual and logical layout that defines network communication used by systems open to interconnection and communication with other systems. The model is broken into seven subcomponents, or layers, each of which represents a conceptual collection of services provided to the layers above and below...
Radio over Internet Protocol (RoIP) is a technology for transmitting radio communication signals using the Internet Protocol (IP) standard. RoIP provides the same performance as well-enhanced radio communication but uses a digital IP network to enable communication and connection between two or more analog radio devices or radio networks.
RoIP is similar to a VoIP network, but with radio communication features and abilities. RoIP works in a half-duplex mode where only one radio device can communicate at a time. The user must push the push-to-talk (P2T) each time before communicating. Besides standard radio communication features, RoIP enables the connection of two or more radio sites together using digital-to-analog converting receivers at both ends, which are directly connected to an Internet backbone. Moreover, RoIP also enables interoperability between different radio networks with different and non-compatible architecture.
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