OTT stands for Over The Top can be. The more we now, without being ourselves, we are use the services of OTT are. To a simple language OTT to services, it is suggested that you, through the network platform Service Provider yourself, it you use. Here for better understanding an example heading: you have a share 3G internet from a Service Provider, keep the same operators that the phone line yourself, from he has purchased and calls to GSM and SMS services from Your he would get here. Now, if you are in the world, it is the 3G network from Skype or any VoIP service will use up to the services of call and SMS cheaper and free access, then Skype can be one of the services of OTT poses bring. Or for example, suppose the Service provider in a package of services to their customers, cable TV or IPTV offers. Now, if the user of the operator from share your Internet to get video content from suppliers who, like Netflix or Amazon benefit, in fact, the services of your video instead of the method of transmission (in Broadcasting) to the method of OTT received is. Now make sure that the Service provider that you from the internet, it to access to the services of OTT use of any controls, the right, the responsibility and the claim could not have. The reason for this is that the user will have to any use of the internet, which tends to be free. Network operator only package IP's from Origin to destination, does not carry. The operator can from the content of the package is notified, but no other work can not be in conjunction with it to do. Being a user, in what way might content video to the methods of OTT and in the world, the internet not depends on her decision in choosing a variety of methods are available in the market. As in the beginning of this season as we have our OTT into three subdirectories, divided we do, then these three branches with each other and with IPTV, we compare.