There is a number of different smartphone companies working for many years in this industry. They all share the same operating system which is android. All these companies try to make is product different from each other on the basis of technical features. That’s the only thing which makes the iPhone the best smartphone in the world. IPhone had its own unique operating system which makes it different from all other mobile phone companies and its user from all other mobile users. Its operating system gave a feel of superior status to its clients when it comes to mobile performance.
IPhone operating system is so secured that it will provide its customers with full data security and virus free operations. On one side where these features make iPhone different from all other companies’ mobiles at the same time limit its working style as well. You cannot use its Bluetooth to transfer your data as other mobiles do. But there are some other hacks which no one knows about the iPhone operating system. You can also read about iPhone hacks through which you can know if someone blocked your number: https://www.answerslav
Like if someone put its mobile on do not disturb mood and you call him and your call is drop after one ring it means its mobile is on do not disturb mood or he cut your call intentionally. So if it is on do not disturb mood you can make a call by just dialing his number once again this time he will receive a full ring. Because the iPhone had that feature in its operating system to facilitate users close one in case of emergency. Because normally if you get the message that the person to whom you calling is busy you do not call him again.
If someone blocks you on his iPhone you can make him a call even then. For that, you have to turn off your caller ID and then make a call to that person. Before that, you are unable to call him because he put your number in the block list.