Phone field
The phone field stores a telephone number. For example, a person's mobile phone number.
You can set the format of phone numbers to that of the current user's locale or to that of a specific country. You can also choose whether to display phone numbers with the country code or in the country's local format without the country code. For example, if a team manager sets Country to User Locale and sets Format to With Country Code, then a user in Japan will see numbers formatted as +81 90 1234 5678. However, if Format is set to Local, then the user would see the same number formatted as 090-1234-5678. When a phone field is created, data formatting defaults to User Locale and With Country Code.