共用方式為


2.2.1.6 Description Element

A Description element contains MediaLine context information. The type of this element is MediaLineDescriptionType.

The MediaLineDescriptionType type is defined as follows<36>:

 <xs:complexType name="MediaLineDescriptionType">
   <xs:sequence>
     <xs:element name="Connectivity" type="tns:ConnectivityType"
      minOccurs="0"/>
     <xs:element name="Security" type="xs:string" minOccurs="0"/>
     <xs:element name="Offerer" type="xs:boolean" minOccurs="0"/>
     <xs:element name="Transport" type="tns:TransportType"
      minOccurs="0"/>
     <xs:element name="NetworkConnectivityInfo"
      type="tns:NetworkConnectivityInfoType" minOccurs="0" />
     <xs:element name="LocalAddr" type="tns:AddrType"/>
     <xs:element name="RemoteAddr" type="tns:AddrType"/>
     <xs:element name="CaptureDev" type="tns:DeviceType" minOccurs="0"/>
     <xs:element name="RenderDev" type="tns:DeviceType" minOccurs="0"/>
     <xs:element ref="v3:ReflexiveLocalIPAddress" minOccurs="0"/>
     <xs:element ref="v3:MidCallReport" minOccurs="0"/>
     <xs:sequence minOccurs="0">
       <xs:element ref="v3:Separator3"></xs:element>
       <xs:element ref="v4:WifiRadioType" minOccurs="0"/>
       <xs:element ref="v4:WifiRSSI" minOccurs="0"/>
       <xs:element ref="v4:SSID" minOccurs="0"/>
       <xs:element ref="v4:WifiChannel" minOccurs="0"/>
       <xs:element ref="v4:ActivePowerProfile" minOccurs="0"/>
       <xs:element ref="v4:WifiHandovers" minOccurs="0"/>
       <xs:element ref="v4:WifiChannelSwitches" minOccurs="0"/>
       <xs:element ref="v4:WifiChannelReassociations" minOccurs="0"/>
       <xs:element ref="v4:RecvQoSMarking" minOccurs="0"/>
       <xs:element ref="v4:SendQoSMarking" minOccurs="0"/>
       <xs:element ref="v4:WifiRadioFrequency" minOccurs="0"/>
       <xs:element ref="v4:WifiMTU" minOccurs="0"/>
       <xs:element ref="v4:WifiSupportFlags" minOccurs="0"/>
       <xs:element ref="v4:WifiStatusFlags" minOccurs="0"/>
       <xs:element ref="v4:WifiTunnelType" minOccurs="0"/>
       <xs:element ref="v4:WifiSignalStrength" minOccurs="0"/>
       <xs:element ref="v4:WifiBatteryCharge" minOccurs="0"/>
       <xs:element ref="v4:ConnectionName" minOccurs="0"/>
       <xs:element ref="v4:DNSSuffix" minOccurs="0"/>
       <xs:element ref="v4:LastRTPSendTime" minOccurs="0"/>
       <xs:element ref="v4:LastRTCPSendTime" minOccurs="0"/>
       <xs:element ref="v4:LastRTPReceiveTime" minOccurs="0"/>
       <xs:element ref="v4:LastRTCPReceiveTime" minOccurs="0"/>
       <xs:sequence minOccurs="0">
         <xs:element ref="v4:Separator4"></xs:element>
         <xs:any namespace="##other" processContents="lax" minOccurs="0" maxOccurs="unbounded"/>
       </xs:sequence>
     </xs:sequence>  
   </xs:sequence>
   <xs:anyAttribute namespace="##other" processContents="lax"/>
 </xs:complexType>
 <xs:simpleType name="TransportType">
   <xs:restriction base="xs:string">
     <xs:enumeration value="UDP"/>
     <xs:enumeration value="TCP"/>
   </xs:restriction>
</xs:simpleType>