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