<?xml version="1.0" encoding="UTF-8"?>
<tsduck>
  <_descriptors>

    <telephone_descriptor
        foreign_availability="bool, required"
        connection_type="uint5, required"
        country_prefix="string, 3 chars max, optional"
        international_area_code="string, 7 chars max, optional"
        operator_code="string, 3 chars max, optional"
        national_area_code="string, 7 chars max, optional"
        core_number="string, 15 chars max, optional"/>

  </_descriptors>
</tsduck>
