Security officials are like the backbone of every, city, state and country. Their need should be given priority, especially when it is for the better of people. For their frequent and interruption free communication they should be given latest radio systems. These radios should have all the latest facilities that allow it to work even in remote areas or the areas where there is lots of frequency disturbance. These systems for metro communications is capable of working in weirdest frequency interruption and that is why it is necessary that the systems are of best quality with latest networking systems enabled.
In metropolitan areas where there are high-rise buildings it is necessary that the best two way radio should be used that too with the support of repeater system. The repeater system transmits the frequency at high altitude so that it can reach far distance without any problem or interference.
Taking this system further to another level many companies have started combining MPT trunking. The digital two way radio is best useful with this system as the system allows people to communicate in mass along with sending visible messages that analog networking radios were not capable of. Moreover, this system is affordable and is capable of working in tense network areas. This system is very useful for civil security purpose, it is equally useful for private security purpose, but for mass security it is the right thing to adopt.
PMR solution is the latest technology that these companies provide and is best seen with TETRA radio (Terrestrial Trunked Radio) system, because it allows people to communicate in group and also one to one. In India, police radio is also mostly of TETRA system.