While calling the WCF

I hosted the WCF Service on the windows service. Another WCF service hosted on the iis consuming while accessing the mothods i am getting the error The caller was not authenticated by the service. both are hosted on the different machines.

here is the my config for service osted on the windows service

servicePrincipalName value="vtpl-068>" />identity>endpoint>client>binding="wsHttpBinding" bindingConfiguration="WSHttpBinding_ICommunicationSVC"algorithmSuite="Default" establishSecurityContext="true" />security>binding>wsHttpBinding>bindings>client>endpoint address="http://vtpl-068:8731/Design_Time_Addresses/SendSMSSVC/CommunicationSVC/"realm="" />message clientCredentialType="Windows" negotiateServiceCredential="true"enabled="false" />security mode="Message">transport clientCredentialType="None" proxyCredentialType="None"maxBytesPerRead="4096" maxNameTableCharCount="16384" />reliableSession ordered="true" inactivityTimeout="00:10:00"textEncoding="utf-8" useDefaultWebProxy="true" allowCookies="false">readerQuotas maxDepth="32" maxStringContentLength="8192" maxArrayLength="16384"maxBufferPoolSize="524288" maxReceivedMessageSize="65536" messageEncoding="Text"bypassProxyOnLocal="false" transactionFlow="false" hostNameComparisonMode="StrongWildcard"openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"bindings>wsHttpBinding>binding name="WSHttpBinding_ICommunicationSVC" closeTimeout="00:01:00"