Cell phone today – it's not just a means of communication and dialogue, he is able to provide you a loyal assistant and the protection of the remote object. Safety has always attached special importance in our country. The main problem with the protection of the object becomes the timely transmission and receipt of alarm messages. This issue is usually solved by using the following communication channels: Radio channel wired telephone line gsm channel leader among provided channels of communication today is wired telephony. The cost of equipment and relatively low maintenance costs and maintenance of the system are small. But what about objects that do not telephone lines? What to do if the attackers cut the phone cord? How to monitor a telephone line? Until recently, these questions remained unanswered.
Radio channel equipment in a safe operation and rapid delivery of alerts, but it has other weaknesses: Limited range, the high cost delivery of messages only to the remote central monitoring stations (CMS) specialist security structures. In addition to the use of radio frequencies should be licensed and pay for radio, which is always very expensive and not always justified. Therefore, in recent years the popularity of security equipment, using the gsm channel to protect the facilities. Such gsm alarm systems can be used both for personal protection in gsm, and centralized security with the use of SPEs. In this case, the alarm can be sent to gsm channel simultaneously on Remote Central Monitoring (CMS) and the owner that allows control of the security structures. The main condition of using this protective equipment – should be protected object in a coverage area gsm networks. Equipment use to transfer alarm messages gsm network, pass it through sms and / or using dial-up and voice messages.
Plus dial-up is that it can carried out not only to cell, but also on the landline phone. Also sms can sometimes come very late, and dial-up, within a few seconds. However, the advantage of sms is that the subscriber will sooner or later receive the message even if his phone is currently unavailable. In addition, some systems can send messages to gprs, mms is video and photo information, using all the same gsm channel. Protection should be available, easy to operation, does not require serious training (especially the elderly) and do not interfere with work and leisure. These conditions, in our opinion meets the gsm security.