There are many OSC server applications out there, which support just one client. With OSCAR you can daisy chaining several devices to use them with more than one client.
OSC-Server <> Client 1 <> Client 2 <> Client 3
Have a look at the following video to get an idea about how it works.
[videojs ogg=“http://osc-commander.com/wp-content/uploads/2013/08/OUTPUTFILE.ogv“]