+---------------+
                          |               |
                     +--> + dtls::Context |
                     |    |               |
                     |    +---------------+
                     |
      +---------+    |    +---------+
      |         |    |    |         |
      |  Agent  + ---+--> + Stream  +
      |         |         |         |
      +---------+         +----+----+
                               |     
                               |     
                               V
                        +------+------+    
                        |             |    
                        |  Candidate  + 
                        |             |
                        +------+------+                         +---------------+
                               |                                |               | 
                               +------------------------------> +  dtls::Parser |
                               |                                |               |
                               |                                +---------------+ 
                               | 
                               |                                +---------------------+
                               |                                |                     |
                               +------------------------------> + rtc::ConnectionUDP  |
                               |                                |                     |
                               |                                +---------------------+
                               | 
                               |                                +---------------------+
                               |                                |                     |
                               +------------------------------> + stun::Reader        |
                                                                |                     |
                                                                +---------------------+