anonymous wrote : can the server call the client synchronously? Ah, yes, well, by "asynchronous" I meant that the server can send callbacks independently of any invocations from the client, whenever it wants. "Asynchronous" could also mean that that after sending the callback the server does not wait for a response from the client. In fact, there are many variations on the sending of callbacks, including a handleCallback() method which, in "push" mode, waits until it gets a response from the client, and a handleCallbackOneway() method, which does not wait. So you could call handleCallbackOneway() asynchronous. For more on this subject see Section "5.6. Callbacks" of the Remoting Guide. Also, there is a mechanism for requesting an acknowledgement that a callback has been received by the client. anonymous wrote : can HTTP[s] be used with bisocket? Remoting has HTTP and HTTPS transports, but these are completely separate from bisocket and sslbisocket. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4073443#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...