| LS | Title | From | To | Approval date |
| SG3-LS96 | LS/r on the Economic Impact of OTTs on national telecommunication/ICT markets (reply to ITU-D SG1-SG1RGQ/397-E) | SG3 | ITU-D Q3/1; ITU-D Q4/1; | 2021-05-28 |
| ITU-D SG 1-SG1RGQ/397-E | LS/r on the Economic Impact of OTTs on national telecommunication/ICT markets (reply to SG3-LS75, SG3-LS76, SG3-LS80) | ITU-D SG 1 | SG3; | 2020-09-28 |
| SG3-LS75 | LS/o on new Recommendation ITU-T D.264 “Shared uses of telecommunication infrastructure as possible methods for enhancing the efficiency of telecommunications” [to ITU-R SG1, ITU-R WP1B, ITU-D SG1 Q4/1] | SG3 | ITU-R SG 1; ITU-R WP 1B; ITU-D Q4/1; | 2020-04-09 |
| SG3-LS76 | LS/r on the Workshop on the Economic Impact of OTTs on National Telecommunication/ICT Markets [to ITU-D SG1 Questions 3/1 and 4/1] | SG3 | ITU-D Q3/1; ITU-D Q4/1; | 2020-04-09 |
| WP2/3-LS80 | LS/o on ongoing work within ITU-T Study Group 3 (SG3) on new Technical Report on “IMT2020-Related Policy Considering MVNOs” [to ITU-T SG13, ITU-T FG-Net2030, FG-ML5G, ITU-D Study Group 1 Question 4/1, 3GPP, ITU-T SG3 Regional Groups] | WP2/3 | 3GPP; SG13; FG ML5G; FG NET2030; SG3RG-AFR; SG3RG-AO; SG3RG-ARB; SG3RG-LAC; SG3RG-EECAT; ITU-D Q4/1; | 2020-04-09 |
| ITU-D Q4/1-SG1RGQ/REP/11 | LS/i on economic aspects of spectrum management and sharing [from ITU-D Study Group 1, Question 4/1] | ITU-D Q4/1 | ITU-R WP 1B; SG3; | 2019-10-02 |
| ITU-D SG 1-SG1RGQ/REP/10 | Liaison statement from ITU-D Study Group 1 Question 3/1 to ITU-T Study Group 3 on the Workshop on the Economic Impact of OTTs on National Telecommunication/ICT Markets on 1 October 2019 | ITU-D SG 1 | SG3; | 2019-09-30 |
| ITU-R SG 1-SG3-TD198/GEN | LS/r on draft new Recommendation ITU-T D.264 on "Shared use of spectrum and telecommunication infrastructure as possible methods for enhancing the efficiency of telecommunications" [from ITU-R Study Group 1] | ITU-R SG 1 | SG3; ITU-R WP 5A; ITU-R WP 5D; | 2019-06-21 |
| ITU-R WP 1B-(Doc. 1B/346) | Economic aspects of spectrum management and sharing | ITU-R WP 1B | ITU-D SG 1; SG3; | 2019-06-18 |
