+-----------+                     +-----------+
      | Endpoint1 |                     | Endpoint2 |
      +----+------+                     +-----+-----+
           | INVITE (BASIC SDP+CLUECHANNEL)   |
           |--------------------------------->|
           |    200 0K (BASIC SDP+CLUECHANNEL)|
           |<---------------------------------|
           | ACK                              |
           |--------------------------------->|
           |                                  |
           |<################################>|
           |       BASIC MEDIA SESSION        |
           |<################################>|
           |                                  |
           |    CONNECT (CLUE CTRL CHANNEL)   |
           |=================================>|
           |            ...                   |
           |<================================>|
           |   CLUE CTRL CHANNEL ESTABLISHED  |
           |<================================>|
           |                                  |
           | ADVERTISEMENT 1                  |
           |*********************************>|
           |                  ADVERTISEMENT 2 |
           |<*********************************|
           |                                  |
           |                      CONFIGURE 1 |
           |<*********************************|
           | CONFIGURE 2                      |
           |*********************************>|
           |                                  |
           | REINVITE (UPDATED SDP)           |
           |--------------------------------->|
           |              200 0K (UPDATED SDP)|
           |<---------------------------------|
           | ACK                              |
           |--------------------------------->|
           |                                  |
           |<################################>|
           |     UPDATED MEDIA SESSION        |
           |<################################>|
           |                                  |
           v                                  v