Text only (restricion included) with attributes

fun.xsd

    <!--
    #################################################################
    -->
    <xs:annotation>
        <xs:documentation>
            This is the way to declare an element that may
            contain text based child only along with attached
            numerous of attributes.
            Tke key is to define simpleType that defines
            how the content of our element may look like
            And when defining text only element provide mentioned
            simpleType as the base for <xs:extension/> element
        </xs:documentation>
    </xs:annotation>
    <xs:simpleType name="phoneNumberFormat">
        <xs:restriction base="xs:string">
            <xs:pattern value="\+\([0-9]{2}\)(-?[0-9]{2,3}){3}"/>
        </xs:restriction>
    </xs:simpleType>
    <xs:element name="phone">
        <xs:complexType>
            <xs:simpleContent>
                <xs:extension base="f:phoneNumberFormat">
                    <xs:attribute name="type" use="required">
                        <xs:simpleType>
                            <xs:restriction base="xs:token">
                                <xs:enumeration value="home"/>
                                <xs:enumeration value="office"/>
                            </xs:restriction>
                        </xs:simpleType>
                    </xs:attribute>
                </xs:extension>
            </xs:simpleContent>
        </xs:complexType>
    </xs:element>
   <!--
   #################################################################
   -->

<f:phone type="office">+(48)-654-65-65</f:phone>

works perfectly ;-)