how to have many contracts in on service? - wcf

Question

I have a service, that principal I would like to be duplex, however, for some operations, I need to use the streamed transfer mode, so I would like to have two contracts, one is the general contract, that let me interact with the database and send messages to the client from the service if I need it, and other contract to interact with files, save and get the files to the database.
I need the two contracts because the tcp binding is not compatible with duplex.
The service is hosted in a WPF application, and the config files is the following:
<system.serviceModel>
<services>
<service name="GTS.CMMS.Service.Service" behaviorConfiguration="behaviorConfig">
<host>
<baseAddresses>
<add baseAddress="net.tcp://localhost:7997/CMMSHost"/>
<add baseAddress="http://localhost:7998/CMMSHost"/>
</baseAddresses>
</host>
<endpoint address="/ServiceCore"
binding="netTcpBinding"
bindingConfiguration="tcpBinding"
name="ServiceCore"
contract="GTS.CMMS.Service.IService">
<!--<identity>
<dns value="localhost" />
</identity>-->
</endpoint>
<endpoint address="/ServiceDocumentos"
binding="netTcpBinding"
bindingConfiguration="tcpBindingDocumentos"
name="ServiceDocumentos"
contract="GTS.CMMS.Service.IServiceDocumentos">
<!--<identity>
<dns value="localhost" />
</identity>-->
</endpoint>
<endpoint contract="IMetadataExchange" binding="mexTcpBinding" address="net.tcp://localhost:5000/mex" />
</service>
</services>
<!--El behavior son datos de configuración del servicio que no forman parte del endpoint.
Por ejemplo, si el servicio da una excepción, se querrá informar al cliente.-->
<behaviors>
<serviceBehaviors>
<behavior name="behaviorConfig">
<serviceMetadata httpGetEnabled="true" />
<dataContractSerializer maxItemsInObjectGraph="2147483647"/>
<!--Necesario para poder mandar excepciones desde el servicio hasta el cliente.-->
<serviceDebug includeExceptionDetailInFaults="true"/>
<serviceThrottling maxConcurrentCalls="100" maxConcurrentSessions="100" />
</behavior>
<behavior name="behaviorConfigDocumentos">
<!--<serviceMetadata httpGetEnabled="true" />-->
<dataContractSerializer maxItemsInObjectGraph="2147483647"/>
<!--Necesario para poder mandar excepciones desde el servicio hasta el cliente.-->
<serviceDebug includeExceptionDetailInFaults="true"/>
<serviceThrottling maxConcurrentCalls="100" maxConcurrentSessions="100" />
<serviceMetadata/>
</behavior>
</serviceBehaviors>
</behaviors>
<!--Se necesita la configuración del binding para que funcione correctamente la comunicación entre el cliente y el servidor.-->
<bindings>
<netTcpBinding>
<!--Se configura el binding que se utilizará para el endPoint ChatServiceAssembly.IChat-->
<binding name="tcpBinding" maxBufferSize="67108864"
maxReceivedMessageSize="67108864" maxBufferPoolSize="67108864"
transferMode="Buffered" closeTimeout="00:00:10"
openTimeout="00:00:10" receiveTimeout="00:20:00"
sendTimeout="00:01:00" maxConnections="100">
<security mode="None"/>
<readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647"
maxArrayLength="2147483647" maxBytesPerRead="2147483647"
maxNameTableCharCount="2147483647"/>
<reliableSession enabled="true" inactivityTimeout="00:20:00" />
</binding>
<binding name="tcpBindingDocumentos" maxBufferSize="67108864"
maxReceivedMessageSize="67108864" maxBufferPoolSize="67108864"
transferMode="Streamed" closeTimeout="00:00:10"
openTimeout="00:00:10" receiveTimeout="00:20:00"
sendTimeout="00:01:00" maxConnections="100">
<security mode="None"/>
<readerQuotas maxDepth="2147483647" maxStringContentLength="2147483647"
maxArrayLength="2147483647" maxBytesPerRead="2147483647"
maxNameTableCharCount="2147483647"/>
<reliableSession enabled="true" inactivityTimeout="00:20:00" />
</binding>
</netTcpBinding>
</bindings>
</system.serviceModel>
To check if all works, I go to the internet explorer and go to:
http://localhost:7998/CMMSHost
If I have the two endpoints, the page is not found, but if I comment the second endpoint, the "/ServiceDocumentos" the page is found and I can use svcutil to create the proxy.
How could I configure many endpoints?
Thanks.