parameters: (self, Call, Seen)
docstring: This event occurs when the seen status of a call changes.
  
          @param Call: Call object.
          @type Call: L{ICall}
          @param Seen: True if call was seen.
          @type Seen: bool
          @see: L{ICall.Seen}
docstring_summary: This event occurs when the seen status of a call changes.
docstring_tokens: This event occurs when the seen status of a call changes .
function: def CallSeenStatusChanged(self, Call, Seen):
          '''This event occurs when the seen status of a call changes.
  
          @param Call: Call object.
          @type Call: L{ICall}
          @param Seen: True if call was seen.
          @type Seen: bool
          @see: L{ICall.Seen}
          '''
function_tokens: def CallSeenStatusChanged ( self , Call , Seen ) :