ICE-Lite                                          Bob
         Agent
           |   Offer (a=ice-lite a=ice-options:trickle)    |
           |---------------------------------------------->|
           |                                               |no cand
           |         Answer (a=ice-options:trickle)        |trickling
           |<----------------------------------------------|
           |              Connectivity Checks              |
           |<--------------------------------------------->|
  peer rflx|                                               |
 cand disco|                                               |
           |<========== CONNECTION ESTABLISHED ===========>|