Can you call a cell phone in the microwave?

A Microwave oven is not a faraday cage. You should learn how a microwave oven and all of it's safety features work before publishing this.
Simply by putting 1/2 a cup of water in the microwave is all it takes to asorb 99.9999% of the microwave energy.
There are other safety features in the door to prevent leakage. One being the holes in the door are designed to block 2.45GHz, your mobile phone does not work on these frequencies so why would it need to block it? You did not say in your youtube if you used 5GHz Wifi or 2.4GHz
You are just scare mongering and need to get your facts straight.
The same about the internet is that anyone can publish anything and it only be remotly based on fact.