The Center is equipped with communication equipment, produced by the Japanese company УIcomФ Ц two-channel УTrunkФ radio-telephone system (with 3 communication cells for the area of the city of Sofia), operating in duplex mode, connected with extension to the telephone network. Radio communication could be implemented either personally or in a group. When operative work is done, it is being operated in an operative channel with a coded signal. The company has also established its own alphanumerical paging system, used for transmitting a specialized information to the particular officer, auto-patrol or group of patrols. We operate with the following models: IC-F1610, IC-F310, IC-F410, IC-F3. The company also has updated its 15-year license for using specified national frequencies. The connection between the operative center and the auto-patrols is realized in the three of the aforesaid alternative manners. For the purpose of fast and easy connection between the subscribers and the Operative Center, the company has available a short-dialing telephone number: 91-163.