| LS | Title | From | To | Approval date |
| Broadband Forum-LIAISE-777 | LS/r on work item Q.BNG-FMI "Signalling Requirements for virtualized Broadband Network Gateway in Fixed-Mobile Interworking" (reply to SG11-LS196) | Broadband Forum | SG11; | 2026-11-05 |
| SG11-LS196 | LS/r on work item Q.BNG-FMI "Signalling Requirements for virtualized Broadband Network Gateway in Fixed-Mobile Interworking" (reply to LIAISE-755) | SG11 | Broadband Forum; | 2026-07-22 |
| Broadband Forum-LIAISE-755 | LS/r on initiation of new work item Q.BNG-FMI "Signalling Requirements for virtualized Broadband Network Gateway in Fixed-Mobile Interworking" (SG11-LS128) | Broadband Forum | SG11; IETF; 3GPP TSG SA2; Cable Labs; SG13; | 2026-06-04 |
| SG11-LS128 | LS on initiation of new work item Q.BNG-FMI "Signalling Requirements for virtualized Broadband Network Gateway in Fixed-Mobile Interworking" | SG11 | 3GPP; Broadband Forum; IETF; SG13; | 2026-03-11 |