Facetime is not found in my phone

Some iPhones in middle eastern countries are not allowed to support FaceTime:

Get help with FaceTime on your iPhone in Saudi Arabia - Apple Support

FaceTime isn’t available or might not appear on some iPhones and iPads purchased or used in Saudi Arabia, Pakistan, and United Arab Emirates, including Dubai. However, with iOS 11.3, FaceTime is available on iPhone in Saudi Arabia.

https://support.apple.com/en-us/HT204170

It does not matter what country you are in - if the country where the iPhone was originally sold does not support FaceTime, it cannot be added.

On your iPhone, go to Settings>General>About>Model, and report the model number that you see there. It is possible you have a phone that is sold in a region that prohibits FaceTime. Where are you located?

This is a device sold in Arab Emirates area. Those devices will have FaceTime disabled unless approved by a carrier, and you are located in the Middle east area. If you locate outside the Middle East area, then FaceTime will be permanently disabled. The links that javaliga provided will explain.

You did not indicate where you are located right now.

That iPhone originated from a country which currently or previously banned FaceTime. It won’t have FaceTime in Israel, the United Arab Emirates, or anywhere outside the Middle East.

(160529)