Configuring Hook Flash
                                            The following procedure describes how to configure various hook-flash features.
                                            
                                                
                                                
                                                
                                                
                                                    |  | ➢ | To configure hook-flash features: | 
                                            
                                            
                                                
                                                
                                                
                                                
                                                    |  | 1. | Configure the digit pattern used by the Tel side to indicate a hook-flash event: | 
                                            
                                            
                                                
                                                
                                                
                                                
                                                    |  | a. | Open the Supplementary Services Settings page (Setup menu > Signaling & Media tab > Gateway folder > DTMF & Supplementary > Supplementary Services Settings). | 
                                            
                                            
                                                
                                                
                                                
                                                
                                                    |  | b. | In the 'Hook-Flash Code' (HookFlashCode) field, enter the digit pattern. | 
                                            
                                            
                                                 
                                            
                                            
                                            
                                                
                                                
                                                
                                                
                                                    |  | 2. | Configure the hook-flash transport type: | 
                                            
                                            
                                                
                                                
                                                
                                                
                                                    |  | a. | Open the DTMF & Dialing page (Setup menu > Signaling & Media tab > Gateway folder > DTMF & Supplementary > DTMF & Dialing). | 
                                            
                                            
                                                
                                                
                                                
                                                
                                                    |  | b. | From the 'Hook-Flash Option' (HookFlashOption) drop-down list, select the required transport type. | 
                                            
                                            
                                                