Supported
An example of the header is shown below:
Supported: early-session
The header properties are shown in the following table:
| 
                                                             Header Level Action  | 
                                                        
                                                             Add  | 
                                                        
                                                             Delete  | 
                                                        
                                                             Modify  | 
                                                        
                                                             List Entries  | 
                                                    
|---|---|---|---|---|
| 
                                                             Operations Supported  | 
                                                        
                                                             Yes  | 
                                                        
                                                             Yes  | 
                                                        
                                                             Yes  | 
                                                        
                                                             N/A  | 
                                                    
| 
                                                             Keyword  | 
                                                        
                                                             Sub Types  | 
                                                        
                                                             Attributes  | 
                                                    
|---|---|---|
| 
                                                             Capabilities  | 
                                                        
                                                             SIPCapabilities Struct  | 
                                                        
                                                             Read/Write  | 
                                                    
Below is a header manipulation example:
| 
                                                             Example 1  | 
                                                        
                                                             Rule:  | 
                                                        
                                                             Add a Supported header: 
 
 
 
  | 
                                                    ||||||||||||
| 
                                                             Result:  | 
                                                        Supported: early-session  | 
                                                    |||||||||||||
| 
                                                             Example 2  | 
                                                        
                                                             Rule:  | 
                                                        
                                                             Set path in the Supported header's options tag: 
 
 
 
  | 
                                                    ||||||||||||
| 
                                                             Result:  | 
                                                        Supported: early-session, path  |