regex phone number allowed characters code example

Example 1: phone number regex

^[+]*[(]{0,1}[0-9]{1,4}[)]{0,1}[-\s\./0-9]*$

Example 2: regex phone number 10 digit

^(\+\d{1,2}\s)?\(?\d{3}\)?[\s.-]?\d{3}[\s.-]?\d{4}$