Enabling the E9-1-1 Feature
                                            By default, the ELIN device feature for E9-1-1 emergency call handling in a Microsoft Teams / Skype for Business environment is disabled. 
                                            
                                                
                                                
                                                
                                                
                                                    |  | ➢ | To enable ELIN feature for the SBC application: | 
                                            
                                            
                                                
                                                
                                                
                                                
                                                    |  | ■ | For the IP Group through which you want to communicate with the public-safety answering point (PSAP), configure the 'SBC PSAP Mode' parameter to Enable. For more information, see Configuring IP Groups. | 
                                            
                                            
                                                
                                                
                                                
                                                
                                                    |  | ➢ | To enable ELIN feature for the Gateway application: | 
                                            
                                            
                                                
                                                
                                                
                                                
                                                    |  | 1. | Open the Priority & Emergency page (Setup menu > Signaling & Media tab > SIP Definitions folder > Priority and Emergency). | 
                                            
                                            
                                                
                                                
                                                
                                                
                                                    |  | 2. | From the 'E911 Gateway' drop-down list (E911Gateway), select NG911 Callback Gateway. | 
                                            
                                            
                                                