| LS | Title | From | To | Approval date |
| SG15-LS50 | LS/r on joint FTTR workshop (reply to ETSI ISG F5G-LS10, BBF-LS170 and CCSA-LS10) | SG15 | BROADBAND FORUM; CCSA; ETSI ISG F5G; | 2023-04-28 |
| BROADBAND FORUM-LS170 | LS/r on Broadband Forum Response and Proposal for Joint FTTR Workshop | BROADBAND FORUM | SG15; | 2023-03-20 |
| CCSA-LS10 | LS/r to ITU-T SG15 to respond to LS on the 3rd FTTR Joint Workshop (reply to SG15-LS38) | CCSA | SG15; | 2023-03-01 |
| SG15-LS38 | LS on the 3rd FTTR Joint Workshop | SG15 | BROADBAND FORUM; CCSA; ETSI; | 2023-02-02 |
| ETSi ISG F5G-LS10 | LS/r on 2nd FTTR Joint Workshop (reply to SG15-LS2) | ETSI ISG F5G | SG15; | 2022-05-02 |
| SG15-LS2 | LS/o on FTTR Joint Workshop | SG15 | BROADBAND FORUM; CCSA; ETSI; | 2022-03-25 |
