Facetime not installed in Middle East Apple Device

The blocking of FaceTime is done at the firmware level. No SIM trick will get you past this.

This is clearly stated here >> Wireless carrier support and features for iPhone in the Middle East - Apple Support

And here >>> https://support.apple.com/en-us/HT204168

This is done at the request of the local government and is not a choice made by Apple.

That only works if the SIM card is for a Middle Eastern country which uses iPhones with the same model numbers but doesn’t ban FaceTime. Turkey, Israel, and countries outside the region use different model numbers.

(153005)

That SIM won't enable FaceTime on Middle Eastern iPhones for which it's restricted; the Dominican Republic isn't a Middle Eastern country.

iPhones originating from Egypt, Qatar, Oman, Jordan, Lebanon, Bahrain, Kuwait, Saudi Arabia, the United Arab Emirates, and Pakistan won't have FaceTime in the last three countries listed, Turkey, Israel, or anywhere outside the Middle East.

(153013)

The blocking of FaceTime is done at the firmware level. No SIM trick will get you past this.

No, it isn't. The reason why some other Middle Eastern SIM cards will work is because those countries use iPhones that have AB or AE in their model numbers but don't ban FaceTime. The second clause in the text you quoted isn't consistent with your statement.

(153014)

The restriction is based on the region of the world in which the phone was originally sold. Buying a phone in one country with the intent of using it in another region of the world, never mind just another country, is not normal. You're going to run into issues.

There isn't a solution. The method involving the SIM card is only known to work in Egypt, Qatar, Oman, Jordan, Lebanon, Bahrain, and Kuwait, and definitely won't work in the Dominican Republic; there isn't any other way to get FaceTime on that iPhone.

(153019)

It’s not just dependent on SIM cards, but also on phone models. If you’re phone was made specifically for one of the countries that restrict FaceTime, changing SIM card will not help.