Action Type Field
The 'Action Type' field specifies the type of action you wish to perform on the message component:
Action Type Field Options
| 
                                                             Action Operand  | 
                                                        
                                                             Description  | 
                                                    
|---|---|
| 
                                                             Add  | 
                                                        
                                                             Adds entities to a message.  | 
                                                    
| 
                                                             Remove  | 
                                                        
                                                             Removes entities from a message.  | 
                                                    
| 
                                                             Modify  | 
                                                        
                                                             Modifies parts of a header or SDP.  | 
                                                    
| 
                                                             Add Prefix  | 
                                                        
                                                             Adds a string prefix to part of a header.  | 
                                                    
| 
                                                             Add Suffix  | 
                                                        
                                                             Adds a string suffix to part of a header.  | 
                                                    
| 
                                                             Remove Prefix  | 
                                                        
                                                             Removes a string prefix from part of a header.  | 
                                                    
| 
                                                             Remove Suffix  | 
                                                        
                                                             Removes a string suffix to part of a header.  | 
                                                    
For more information, see Action Type.