| Work item: | G Suppl. CoexFIN | 
                                
                                    | Subject/title: | Coexistence between G.fin and G.Xfin systems | 
                                
                                    | Status: | Under study | 
                                
                                    | Approval process: | Agreement | 
                                
                                    | Type of work item: | Supplement | 
                                
                                    | Version: | New | 
                                
                                    | Equivalent number: | - | 
                                
                                    | Timing: | 2025-10 (Medium priority) | 
                                
                                    | Liaison: | - | 
                                
                                    | Supporting members: | - | 
                                
                                    | Summary: | This supplement describes the motivation of coexistence between G.fin and G.Xfin systems, collects the coexistence scenarios and discusses the corresponding technical needs:
Motivation of  coexistence between G.fin & G.Xfin systems: considering the factors such as deployed fibre in-premises network, user demand, and potential technology evolution, etc.
Coexistence scenarios: providing detailed descriptions of various coexistence scenarios in residential and SME environment and discussing the potential challenges & deployment strategies etc.
Corresponding technical needs: summarizing the technical needs to enable smooth migration | 
                                
                                    | Comment: | - | 
                                
                                    | Reference(s): |  | 
                                     | Historic references: | 
                                    | Contact(s): |  | 
                                
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                                            | ITU-T A.5 justification(s): |  
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                                    | First registration in the WP:
                                        2025-05-20 11:05:21 | 
                                
                                    | Last update:
                                        2025-10-11 12:49:51 |