title: Distance from Cell tower
body: <p>I am a beginner in android developing and I am working on a project to create an app to locate cell phones without using GPS.
  i got the cell id and the neighboring cell towers now a need how to calculate distance from theses cells to proceed a trilateration in aim to locate my phone using GSM Network </p>
  
  <p>Can anybody help me with how to calculate this for GSM.
  Any code available for this purpose would be appreciated really.</p>
  
  <p>Thank you all .</p>