|  | 1 | 
            
              | Information |  
              | Non Error information, e.g. acknowledgement that party is still operational. |  | 
        
          |  | 2 | 
            
              | Warning |  
              | Warning, e.g. resources getting low. |  | 
        
          |  | 3 | 
            
              | Non-fatal error |  
              | Non-fatal error detected by party sending the UIR. Dialogue integrity may be compromised. |  | 
        
          |  | 4 | 
            
              | Abort dialogue |  
              | Established dialogue cannot continue. |  | 
        
          |  | 5 | 
            
              | Query status |  
              | Request for a status report from other party. Should be answered with a 'Status report' (see code value '6' below). |  | 
        
          |  | 6 | 
            
              | Status report |  
              | Reporting status of dialogue as perceived by sending party. |  | 
        
          |  | 7 | 
            
              | Pause dialogue |  
              | Advise other party to stop transferring data within this dialogue until a 'Continue dialogue' is received. |  | 
        
          |  | 8 | 
            
              | Continue dialogue |  
              | Advise that data flow may continue after being 'Paused' (see code value '7' above). |  | 
        
          |  | 9 | 
            
              | Start dialogue reject |  
              | Dialogue cannot be initiated. |  |