title: Using Android-Tablet as an MQTT-Server
body: <p>I have read something about "messaging system" using  the MQTT protocol. But i was always reading about the constellation:
  using Android as a MQTT-Client and a MQTT-Server which is not installed on a Android smartphone oder tablet (but as a standalone server).</p>
  
  <p>Is it possible to use one Android-Tablet as a MQTT-Server and some other Android-Tablets (for example 5 Tablets) as MQTT-Clients??</p>
  
  <p>And if this is possible, is it possible to use the one Android-Tablet which is a MQTT-Server, also as a MQTT-Client?</p>
  
  <p>The communication between the Android-MQTT-Server-Tablet and the other tablets as MQTT-Client, should work over an WIFI-Router / WIFI-Access-Point. </p>
  
  <p>Thank you in advance for helping.</p>