title: Connecting APN using AT Commands
body: <p>I need to connect in internet with a usb 3g dongle using at commands.</p>
  
  <p>My apn provider is:</p>
  
  <pre><code>APN = tim.br
  Username = tim
  Password = tim
  </code></pre>
  
  <p>How can I connect using only at commands? It's possible?</p>
  
  <p>Thanks.</p>