WCF Contract for both duplex and non-duplex - wcf

Question

I am trying to host a WCF service that supports wshttpbinding and wsDualHttpBinding. The reason is for desktop clients I need duplex contract and for web clients I don't.
I tried to create a contract for duplex and it work perfect, Now I tried to add new contract to my WCF which have no call back, I define new interface, add the [ServiceContract], and new class who implement the new interface contract, but I don't know how to define the web.config to let me get both binding/contract in same WCF.
here what I tried to do:
<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<system.serviceModel>
<bindings>
<wsDualHttpBinding>
<binding name="WSDualHttpBinding_IBridgeWCFService" closeTimeout="01:01:00" openTimeout="01:01:00" receiveTimeout="01:10:00" sendTimeout="01:01:00" bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard" maxBufferPoolSize="2147483646" maxReceivedMessageSize="2147483646" messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true">
<readerQuotas maxDepth="256" maxStringContentLength="2147483646" maxArrayLength="2147483646" maxBytesPerRead="2147483646" maxNameTableCharCount="2147483646" />
<reliableSession ordered="true" inactivityTimeout="01:10:00" />
<security mode="Message">
<message clientCredentialType="Windows" negotiateServiceCredential="true" algorithmSuite="Default" />
</security>
</binding>
</wsDualHttpBinding>
<wsHttpBinding>
<binding name="WSHttpBinding_IWebBridgeWCFService" closeTimeout="00:01:00" openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00" bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard" maxBufferPoolSize="2147483646" maxReceivedMessageSize="2147483646" messageEncoding="Text" textEncoding="utf-8" useDefaultWebProxy="true" allowCookies="false">
<readerQuotas maxDepth="32" maxStringContentLength="2147483646" maxArrayLength="2147483646" maxBytesPerRead="2147483646" maxNameTableCharCount="2147483646"/>
<reliableSession ordered="true" inactivityTimeout="00:10:00" enabled="false"/>
<security mode="Message">
<!--<transport clientCredentialType="Windows" proxyCredentialType="None" realm=""/>
<message clientCredentialType="Windows" negotiateServiceCredential="true" algorithmSuite="Default"/>-->
</security>
</binding>
</wsHttpBinding>
</bindings>
<services>
<service behaviorConfiguration="BridgeNameSpace.Service1Behavior" name="BridgeNameSpace.BridgeWCFService">
<endpoint address="" binding="wsDualHttpBinding" bindingConfiguration="WSDualHttpBinding_IBridgeWCFService" contract="BridgeNameSpace.IBridgeWCFService">
<identity>
<servicePrincipalName value="BridgeWCFService" />
<dns value="win-j7da0dqoajj" />
</identity>
</endpoint>
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
<endpoint address="" binding="wsHttpBinding" bindingConfiguration="WSHttpBinding_IWebBridgeWCFService" contract="BridgeNameSpace.IWebBridgeWCFService">
<identity>
<dns value="localhost"/>
</identity>
</endpoint>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="BridgeNameSpace.Service1Behavior">
<!-- To avoid disclosing metadata information, set the value below to false and remove the metadata endpoint above before deployment -->
<serviceMetadata httpGetEnabled="true" />
<dataContractSerializer maxItemsInObjectGraph="2147483647" />
<!-- To receive exception details in faults for debugging purposes, set the value below to true. Set to false before deployment to avoid disclosing exception information -->
<serviceDebug includeExceptionDetailInFaults="false" />
</behavior>
</serviceBehaviors>
</behaviors>
</system.serviceModel>
<system.web>
<compilation debug="true" />
</system.web>
</configuration>