                             +------------------------------------------------------+
                             |                          k                           |
                             |                                                      |
                             |    +-----------------------+                         |
                             |    |      cell tower       |                         |
                             |    |                       |                         |
                             |    |     /----------/      |                         |
                             |    |    /          /       |                         |
                             |    |   | satellites        |                         |
                             |    |    \          \       |                         |
                             |    |     \__________\      |  +----------------+     |
                             |    |       |   |    |      |  | online portal  |     |
                             |    |       |   |    |      |  |      /--\      |     |
                             |    |       |   |    |      |  |     /    \     |     |
                             |    |       |   |    |      |  |     \ ui /     |     |
                             |    |       |   |    |      |  |      \__/      |     |
                             |    |     sendsend send     |  |                |     |
                             |    |       |   |    |      |  |                |     |
                             |    |       |   |    |      |  +----------------+     |
                             |    |       v   v    v      |                         |
                             |    |     +------------+    |                         |
                             |    |     |transmitter |    |                         |
                             |    |     |            |    |                         |
                             |    |     +------------+    |                         |
                             |    |           |           |                         |
                             |    +-----------|-----------+                         |
                             |                |                                     |
                             |           phone logs                                 |
                             |                |                                     |
                             |      +---------|---------+                           |
                             |      |  data processor   |                           |
                             |      |         |         |                           |
                             |      |         v         |                           |
                             |      |    .-------.      |                           |
                             |      |   |\-_____-/|     |                           |
                             |      |   |         |     |                           |
                             |      |   | storage |     |                           |
                             |      |   |         |     |                           |
                  /---\      |      |    \-_____-/      |                           |
                  \___/      |      |                   |                           |
               /---------\   |      |                   |                           |
              /           \  |      +-------------------+                           |
              --------------+|                                                      |
                  user      ||                                                      |
                 |          |+------------------------------------------------------+
                 |          |                                                        
                 |       access                                                      
                 |          |                                                        
            +----+          |  +----------------------------------+                  
            |               |  |                                  |                  
 +----------|---------------|--|----------------------------+     |                  
 |      make call          network                          |     |                  
 |          |               |  |                            |     |                  
 |          v       +-------|--|-----+                      |     |                  
 |    +-----------+ | online|portal  |                      |     |                  
 |    |cell tower | |       |  |     |                      |     |                  
 |    |           | |       v  v     |                      |     |                  
 |    +-----------+ |    +-------+   |                      |     |                  
 |                  |    |  ui   |   |                      |     |                  
 |                  |    |       |   |                      |     |                  
 |                  |    +-------+   |   +---------------+  |  display               
 |                  |                |   |data processor |  |     |                  
 |                  +----------------+   |               |  |     |                  
 |                                       +---------------+  |     |                  
 |                                                     |    |     |                  
 +-----------------------------------------------------|----+     |                  
                                                       |          |                  
                                                       |   +------+                  
                                                       |   |                         
                                                       v   |                         
                                                   +-----------+                     
                                                   |api server |                     
                                                   |           |                     
                                                   +-----------+                     
                                                         |                           
                                                      persist                        
                                                         |                           
                                                         v                           
                                                    +-----+                          
                                                    |     \+                         
                                                    | logs |                         
                                                    |      |                         
                                                    +------+                         
