We live in the century of rapidly developing world around, and the necessity of strong signal is growing day by day. Modern conditions of existence are required the extension of rapid information exchange. Telenor is a multinational telecommunications company with almost 40 years of experience at the market. It has operations in 29 countries all over the world. So, Montenegro is not an exception. Telenor is the first and important mobile phone operator of Montenegro, which was founded in 1996. It successfully supports 2G, GSM, 3G and 4G LTE technologies and suggests the services to nearly 450.000 subscribers. It is such a great result, but there are always the ways of perfection. Despite the fact of holding of 40% of Montenegrin mobile market, some Telenor’s clients have problems with connection during conversations or surfing the Internet.