text: const PhoneTest = /^\+(\d{11})$/;
  
  /**
   * Checks wether the given string value matches international telephone formatting
   * @param {string} value: phone number to be validated
   * @returns {boolean} result of the evaluation
   */
  export default function validatePhone(value) {
    // strip all spaces from value
    const stripped_value = value.replace(/\s/g, '');
    return PhoneTest.test(stripped_value);
  }
  