how to call WCF from another WCF

WCF1.svc
namespace SyncFalconService
{
[ServiceBehavior(InstanceContextMode = InstanceContextMode.Single, ConcurrencyMode = ConcurrencyMode.Single)]
public class SyncFalconService : ISyncFalconService
{
//some code
//calling WCF2(ETimeService)
ETimeService.ETimeClient etObj = new ETimeClient();
etObj.EmployeeInterfaced();

}
}


in webconfig, I have the code
service name="SyncFalconService.SyncFalconService" behaviorConfiguration="metadataBehavior">

endpoint address="" binding="wsHttpBinding" contract="SyncFalconService.ISyncFalconService" />
endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />

/service>


IService is

namespace SyncFalconService
{

[ServiceContract]
public interface ISyncFalconService
{
[OperationContract]
[FaultContract(typeof(FaultMessage))]
string TestRequest();

[OperationContract]
[FaultContract(typeof(FaultMessage))]
void SyncFalconReplicator(string SourceDatabase, string Country, string ServiceCompany, string SyncType, string BadgeNo);

}



}

I included as you suggest but also I get the same error. there is a autogenerated file called Reference.cs and contain the below code

//------------------------------------------------------------------------------
// <auto-generated>
// This code was generated by a tool.
// Runtime Version:4.0.30319.1026
//
// Changes to this file may cause incorrect behavior and will be lost if
// the code is regenerated.
//
//------------------------------------------------------------------------------

namespace SyncFalconService.ETimeService {


[System.CodeDom.Compiler.GeneratedCodeAttribute("System.ServiceModel", "4.0.0.0")]
[System.ServiceModel.ServiceContractAttribute(ConfigurationName="ETimeService.IETime")]
public interface IETime {

[System.ServiceModel.OperationContractAttribute(Action="http://tempuri.org/IETime/TestService", ReplyAction="http://tempuri.org/IETime/TestServiceResponse")]
string TestService();

[System.ServiceModel.OperationContractAttribute(Action="http://tempuri.org/IETime/EmployeeInterfaced", ReplyAction="http://tempuri.org/IETime/EmployeeInterfacedResponse")]
bool EmployeeInterfaced();
}

[System.CodeDom.Compiler.GeneratedCodeAttribute("System.ServiceModel", "4.0.0.0")]
public interface IETimeChannel : SyncFalconService.ETimeService.IETime, System.ServiceModel.IClientChannel {
}

[System.Diagnostics.DebuggerStepThroughAttribute()]
[System.CodeDom.Compiler.GeneratedCodeAttribute("System.ServiceModel", "4.0.0.0")]
public partial class ETimeClient : System.ServiceModel.ClientBase<syncfalconservice.etimeservice.ietime>, SyncFalconService.ETimeService.IETime {

public ETimeClient() {
}

public ETimeClient(string endpointConfigurationName) :
base(endpointConfigurationName) {
}

public ETimeClient(string endpointConfigurationName, string remoteAddress) :
base(endpointConfigurationName, remoteAddress) {
}

public ETimeClient(string endpointConfigurationName, System.ServiceModel.EndpointAddress remoteAddress) :
base(endpointConfigurationName, remoteAddress) {
}

public ETimeClient(System.ServiceModel.Channels.Binding binding, System.ServiceModel.EndpointAddress remoteAddress) :
base(binding, remoteAddress) {
}

public string TestService() {
return base.Channel.TestService();
}

public bool EmployeeInterfaced() {
return base.Channel.EmployeeInterfaced();
}
}
}

I checked the target framework too. both services refer to the same targetframework. I have included the service reference properly. still I get the error.

Could any one suggest me any possibilities to fix the error.