Phone number field type

The E.164 phone number standard ensures that all necessary information for a phone number is included and properly formatted to successfully route an international call over a territory's public telephone network.

When a user enters a phone number, it is received and stored as a string of numbers. An E.164 phone number field automatically formats and validates the numbers so that they are E.164-compliant when displayed as local and international numbers. The E.164 phone number field type does not replace the phone field type.

An E.164 phone number field displays:
  • [Optional] A choice list for the phone number territory.
  • [Always] An input box for entering phone numbers.
  • [By Default] A red underline when a phone number does not match the format for the selected phone territory and cannot be saved.
  • [Optional] A green underline when a phone number does not match the format for the selected phone territory but can be saved with Other / Unknown as the territory.
Figure 1. Phone e164