A JXTA {@link net.jxta.endpoint.MessageTransport} implementation which
which provides client polling and server store-and forward functionality for
peers incapable of receiving incoming connections. A virtual transport, the
messages are transfered between peers using client initiated connections of
some other message transport.
@see net.jxta.endpoint.EndpointService
@see net.jxta.endpoint.MessageTransport
@see net.jxta.endpoint.MessageSender
@see net.jxta.endpoint.MessageReceiver
@see net.jxta.endpoint.Message
@see JXTA Protocols Specification : Standard JXTA Transport Bindings