NMT-450i (Nordic Mobile Telephone) is an early analog cellular communication standard. In Moscow, this standard was supported by MCC (Moscow Cellular Communications). All Russian NMT operators formed the SoTel network (cellular telephone network of Russia). The quality of NMT-450i communication is a complex concept, including coverage area, sensitivity, call accessibility, sound quality, connection stability, and so on. All these parameters in NMT-450i are at least on par with digital standards. Sometimes NMT sound is criticized, but it is not bad — just different: yes, there are interferences, noise, and “grunting” sounds. Reception indoors can be poor in areas of dense urban development or in a “dirty” radio environment. However, the sound itself is more natural, “live,” and rich compared to digital standards, without the digital “gurgling,” “croaking,” and dropouts caused by poor audio digitization. With poor analog reception, it is still possible to understand the other person through crackling and noise, whereas with poor digital reception, frame loss and incorrect digitization can sometimes make speech completely unintelligible. NMT communication is stable, with rare disconnections, and in terms of coverage area, the NMT-450i standard is unmatched. If communication is needed from remote areas, especially with high-power phones, this is the right choice. The disadvantages of the NMT standard include operator-locked phones, a limited selection of devices, their large size, and high prices.