dynamic_license_expiration_time
                                                    Sets the expiration timer for relinquishing unused dynamically acquired licenses.
| 
                                                                     Value  | 
                                                                
                                                                     Integer: 30–INT_MAX.  | 
                                                            
| 
                                                                     Default  | 
                                                                
                                                                     300 (seconds)  | 
                                                            
| 
                                                                     How to set  | 
                                                                
                                                                     
                                                                          | 
                                                            
| 
                                                                     Usage  | 
                                                                
                                                                     Seldom used.  | 
                                                            
When set on the Vocalizer service this parameter affects controlled by tts_license_dynamic_ports.