With the growing popularity of SMS-messages as commands in any process there is a need for the program, which receives and sends messages automatically and provides the link between the GSM-modem and the process. SMS Server - this software, which reads data from GSM-modem and puts them into a database. In doing so, each message is checked for the code in the database table and in the case of finding one of them performed certain actions (for example, makes a balance inquiry). In addition, the server can send messages using a special queue, which indicates the recipient, the priority and time of message.