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Joji, or stylized as JOJI, is a 2021 Indian Malayalam-language crime drama film directed by Dileesh Pothan and written by Syam Pushkaran. The story is inspired by William Shakespeare's play Macbeth. The film was produced by Bhavana Studios in association with Working Class Hero, and Fahadh Faasil and Friends. Fahadh Faasil plays the title character, while Baburaj, Shammi Thilakan, and Unnimaya Prasad play other pivotal roles. The plot revolves around a wealthy family of three sons and a father living in the countryside of Kerala.

A trunked radio system is a two-way radio system that uses a control channel to automatically assign frequency channels to groups of user radios. In a traditional half-duplex land mobile radio system a group of users with mobile and portable two-way radios communicate over a single shared radio channel, with one user at a time talking. These systems typically have access to multiple channels, up to 40-60, so multiple groups in the same area can communicate simultaneously. In a conventional (non-trunked) system, channel selection is done manually; before use, the group must decide which channel to use, and manually switch all the radios to that channel. This is an inefficient use of scarce radio channel resources because the user group must have exclusive use of their channel regardless of how much or how little they are transmitting. There is also nothing to prevent multiple groups in the same area from choosing the same channel, causing conflicts and 'cross-talk'. A trunked radio system is an advanced alternative in which the channel selection process is done automatically, so as to avoid channel conflicts and maintain frequency efficiency across multiple talkgroups. This process is handled by what is essentially a central radio traffic controller, a function automatically handled by a computer system.