Why can't I get a call from the CDC in Xanadu?

The phone is set up to intercept calls reason. Phone blocking cancel method:

1, open the cell phone settings, slide the page down, find security and privacy and open.

2, enter the page, find the online recognition of unfamiliar numbers and click to enter.

3. Once inside, click on the button next to Recognize unfamiliar numbers online and slide it off.