title: android + piconets + parked devices
body: <p>i am trying to code an application with android and bluetooth. As a summary, and as something i think is well documented on internet, bluetooth 2.1 (i couldnt find information for 3.0 and 4.0) only supports 7 active devices in the same piconet, and up to 255 in parked mode (not connected and discovered through Inquiry scan, buy sync listening for broadcast packets). I couldn't find information for 3.0 and 4.0 specifications if they continue with this limitation of 7 active members.</p>
  
  <p>There are tons of questions which answers are not easy to find about bluetooth. I hope somebody can help me with the next issue.</p>
  
  <p>How can you communicate with a device in parked mode in Android through RFCOMM? If only 7 devices can be active with open socket connection (paged &amp; connected), how can you make all devices being able to communicate between each other through the master device?</p>
  
  <p>To make things a little bit clear, we can imagine that i am trying to create a communication app between all devices in a piconet, where all users near the master can enter the 'chat'. But to make all of them chat, you need all devices (connected and parked) 'connected' through RFCOMM, so they can exchange information using sockets. </p>
  
  <p>But if only 7 can communicate and can open an active socket, how could be the strategy? How can i make all of them communicate between each other, so all devices can receive the same information to talk through the chat?</p>
  
  <p>thank you very much in advance.</p>