"L:" refers to the local speaker and "R:" refers to the remote speaker

      L:Cap.True              - Capability advertised
      R:Cap.True              - Capability received

      L:Cap.False             - Capability not advertised
      R:Cap.False             - Capability not received

      L:Dyn.Oper.None/Add/Del - Following Capability revision may be triggered
                                at Idle state 
                                Operator adds a capability OR
                                Operator deletes a capability 

      L.Send.None             - Router does not send DCAP message
      R.Send.None             - Router does not send DCAP message

      L.Recv.None             - Router does not receive DCAP messages
      R.Recv.None             - Router does not receive DCAP messages

      L.Send.Init             - Router sends DCAP message with Init/Ack=0
      R.Recv.Init             - Router receives DCAP message with Init/Ack=0

      L.Recv.Ack              - Router receives DCAP message with Init/Ack=1
      R.Send.Ack              - Router sends DCAP message with Init/Ack=1