ah if you want to stream from box to device outside your network then you are going to need to set up port forwarding on your router to enable access to the box, but then that becomes a security issue.
Most of the apps will play recordings, even openwebif on your pc, click on 'movies' in the menu on the left and then click on the stream icon next to the recording, you may need something like VLC installed on your pc to play the stream.