<xs:attributeGroup name="TelephoneAttributesGroup">
    <xs:annotation>
        <xs:documentation xml:lang="en">Provides telephone information details.</xs:documentation>
    </xs:annotation>
    <xs:attribute name="PhoneLocationType" type="OTA_CodeType" use="optional">
        <xs:annotation>
            <xs:documentation xml:lang="en">Refer to OTA Code List Phone Location Type (PLT).
		</xs:documentation>
        </xs:annotation>
    </xs:attribute>
    <xs:attribute name="PhoneTechType" type="OTA_CodeType" use="optional">
        <xs:annotation>
            <xs:documentation xml:lang="en">Indicates type of technology associated with this telephone number, such as Voice, Data, Fax, Pager, Mobile, TTY, etc. Refer to OTA Code List Phone Technology Type (PTT).</xs:documentation>
        </xs:annotation>
    </xs:attribute>
    <xs:attribute name="PhoneUseType" type="OTA_CodeType" use="optional">
        <xs:annotation>
            <xs:documentation xml:lang="en">Describes the type of telephone number, in the context of its general use (e.g. Home, Business, Emergency Contact, Travel Arranger, Day, Evening). Refer to OTA Code List Phone Use Type (PUT).</xs:documentation>
        </xs:annotation>
    </xs:attribute>
    <xs:attribute name="CountryAccessCode" type="NumericStringLength1to3" use="optional">
        <xs:annotation>
            <xs:documentation xml:lang="en">Code assigned by telecommunications authorities for international country access identifier.</xs:documentation>
        </xs:annotation>
    </xs:attribute>
    <xs:attribute name="AreaCityCode" type="NumericStringLength1to8" use="optional">
        <xs:annotation>
            <xs:documentation xml:lang="en">Code assigned for telephones in a specific region, city, or area.</xs:documentation>
        </xs:annotation>
    </xs:attribute>
    <xs:attribute name="PhoneNumber" type="StringLength1to32" use="required">
        <xs:annotation>
            <xs:documentation xml:lang="en">Telephone number assigned to a single location.</xs:documentation>
        </xs:annotation>
    </xs:attribute>
    <xs:attribute name="Extension" type="NumericStringLength1to5" use="optional">
        <xs:annotation>
            <xs:documentation xml:lang="en">Extension to reach a specific party at the phone number.</xs:documentation>
        </xs:annotation>
    </xs:attribute>
    <xs:attribute name="PIN" type="StringLength1to8" use="optional">
        <xs:annotation>
            <xs:documentation xml:lang="en">Additional codes used for pager or telephone access rights.</xs:documentation>
        </xs:annotation>
    </xs:attribute>
    <xs:attribute name="Remark" type="StringLength1to128" use="optional">
        <xs:annotation>
            <xs:documentation xml:lang="en">A remark associated with the telephone number.</xs:documentation>
        </xs:annotation>
    </xs:attribute>
</xs:attributeGroup>