| LS | Title | From | To | Approval date |
| SG5-LS44 | LS/r on Telecommunication Management and OAM Project Plan (reply to SG2-LS70) | SG5 | SG2; | 2025-11-06 |
| SG2-LS70 | LS on Telecommunication Management and OAM Project Plan | SG2 | SG3; SG5; SG21; SG11; SG12; SG13; SG15; SG17; SG20; | 2025-09-05 |