| LS | Title | From | To | Approval date |
| SG5-LS226 | LS/r on Telecommunication Management and OAM Project Plan (reply to SG2-LS244 and SG2-LS203) | SG5 | SG2; | 2021-12-10 |
| SG9-LS153 | LS/r on Telecommunication Management and OAM Project Plan (SG2-LS203) | SG9 | SG2; SG3; SG5; SG11; SG12; SG13; SG15; SG16; SG17; TSAG; SG20; | 2021-11-24 |
| SG2-LS244 | LS on Telecommunication Management and OAM Project Plan | SG2 | SG3; SG5; SG9; SG11; SG12; SG13; SG15; SG16; SG17; SG20; TSAG; | 2021-11-19 |
| SG20-LS243 | LS/r on Telecommunication Management and OAM Project Plan (reply to SG2-LS203) | SG20 | SG2; | 2021-10-21 |
| SG17-LS317 | LS/r on Telecommunication Management and OAM Plan (reply to SG2-LS203) | SG17 | SG2; SG11; SG15; | 2021-09-03 |
| SG11-LS208 | LS/r on Telecommunication Management and OAM Project Plan (SG2-LS203) | SG11 | SG2; | 2021-07-16 |
| SG13-LS224 | LS/r on Telecommunication Management and OAM Project Plan (reply to SG2-LS203) | SG13 | SG2; | 2021-07-16 |
| SG2-LS203 | LS on Telecommunication Management and OAM Project Plan | SG2 | SG3; SG5; SG9; SG11; SG12; SG13; SG15; SG16; SG17; SG20; TSAG; | 2021-06-11 |