Server端：
Uri-->binding.BuildChannelListener<IReplyChannel(Uri)-->ChannelListener<IReplyChannel>.AcceptChannel()-->channel.ReceiveRequest(TimeSpan)-->RequestContext.Reply(Message).
Client端：
EndpointAddress-->binding.BuildChannelFactory<IRequestChannel>-->channelFactory.CreateChannel(EndpointAddress)-->channel.Request(Message).
| MEP | Sender | Receiver |
| Datagram | IOutputChannel | IInputChannel |
| Request/Reply | IRequestChannel | IReplyChannel |
| Duplex | IDuplexChannel | IDuplexChannel |
| P2P | IDuplexChannel | IDuplexChannel |
BindingElement
