ITU-T Study Group Documents

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TSAG
- Geneva, 26-30 January 2026
  - TD [GEN] (67)
- Geneva, 26-30 May 2025
  - Contributions (20)
  - Collective letter
  - Reports (1)
  - TD [GEN] (153)
- Geneva, 29 July - 2 August 2024
  - Contributions (24)
  - Collective letter
  - Reports (1)
  - TD [GEN] (202)
- Geneva, 22-26 January 2024
  - Contributions (38)
  - Collective letter
  - Reports (4)
  - TD [GEN] (183)
- Geneva, 30 May - 2 June 2023
  - Contributions (32)
  - Collective letter
  - Reports (2)
  - TD [GEN] (133)
- Geneva, 12-16 December 2022
  - Contributions (20)
  - Collective letter
  - Reports (1)
  - TD [GEN] (169)
- E-Meeting, 10-17 January 2022
  - Contributions (10)
  - Collective letter
  - Reports (1)
  - TD [GEN] (152)
- E-Meeting, 25-29 October 2021
  - Contributions (25)
  - Collective letter
  - Reports (1)
  - TD [GEN] (154)
- E-Meeting, 11-18 January 2021
  - Contributions (14)
  - Collective letter
  - Reports (12)
  - TD [GEN] (103)
- E-Meeting, 21-25 September 2020
  - Contributions (27)
  - Collective letter
  - Reports (1)
  - TD [GEN] (143)
- Geneva, 10-14 February 2020
  - Contributions (36)
  - Collective letter
  - Reports (1)
  - TD [GEN] (132)
- Geneva, 23-27 September 2019
  - Contributions (38)
  - Collective letter
  - Reports (1)
  - TD [GEN] (192)
- Geneva, 10-14 December 2018
  - Contributions (15)
  - Collective letter
  - Reports (5)
  - TD [GEN] (173)
- Geneva, 26 February - 2 March 2018
  - Contributions (22)
  - Collective letter
  - Reports (1)
  - TD [GEN] (151)
- Geneva, 1-4 May 2017
  - Contributions (22)
  - Collective letter
  - Reports (1)
  - TD [GEN] (122)
- Geneva, 18-22 July 2016
  - Contributions (38)
  - Collective letter
  - Reports (1)
  - TD [GEN] (151)
- Geneva, 1-5 February 2016
  - Contributions (18)
  - Collective letter
  - Reports (1)
  - TD [GEN] (134)
- Recently posted TSAG documents
- Documents in the TSAG FTP Area
- Search for TSAG docs

SG2
- Geneva, 4-13 February 2026
  - TD [GEN] (2)
  - TD [PLEN] (48)
- Geneva, 25 August - 5 September 2025
  - Contributions (63)
  - Collective letter
  - Reports (6)
  - TD [GEN] (135)
  - TD [PLEN] (133)
- Geneva, 5-14 February 2025
  - Contributions (81)
  - Collective letter
  - Reports (7)
  - TD [GEN] (140)
  - TD [PLEN] (156)
- Geneva, 19-28 June 2024
  - Contributions (83)
  - Collective letter
  - Reports (5)
  - TD [GEN] (132)
  - TD [PLEN] (154)
- E-Meeting, 11 March 2024
  - Contributions (1)
  - Collective letter
  - Reports (2)
  - TD [PLEN] (24)
- Geneva, 8-17 November 2023
  - Contributions (61)
  - Collective letter
  - Reports (7)
  - TD [GEN] (137)
  - TD [PLEN] (143)
- E-Meeting, 13-22 March 2023
  - Contributions (40)
  - Collective letter
  - Reports (4)
  - TD [GEN] (150)
  - TD [PLEN] (130)
- Geneva, 16-20 May 2022
  - Contributions (57)
  - Collective letter
  - Reports (4)
  - TD [GEN] (81)
  - TD [PLEN] (114)
- E-Meeting, 8-19 November 2021
  - Contributions (31)
  - Collective letter
  - Reports (3)
  - TD [GEN] (80)
  - TD [PLEN] (101)
- E-Meeting, 31 May - 11 June 2021
  - Contributions (37)
  - Collective letter
  - Reports (3)
  - TD [GEN] (177)
- E-Meeting, 18 December 2020
  - Contributions (6)
  - Collective letter
  - Reports (2)
  - TD [GEN] (64)
- E-Meeting, 7-8 September 2020
  - Contributions (10)
  - Collective letter
  - Reports (1)
  - TD [GEN] (74)
- E-Meeting, 27 May - 5 June 2020
  - Contributions (28)
  - Collective letter
  - Reports (4)
  - TD [GEN] (175)
- Geneva, 4-13 December 2019
  - Contributions (57)
  - Collective letter
  - Reports (8)
  - TD [GEN] (243)
- Geneva, 19-28 February 2019
  - Contributions (52)
  - Collective letter
  - Reports (4)
  - TD [GEN] (221)
- Geneva, 4-13 July 2018
  - Contributions (67)
  - Collective letter
  - Reports (4)
  - TD [GEN] (173)
- Geneva, 27 November - 1 December 2017
  - Contributions (44)
  - Collective letter
  - Reports (4)
  - TD [GEN] (178)
- Geneva, 29 March - 7 April 2017
  - Contributions (28)
  - Collective letter
  - Reports (3)
  - TD [GEN] (146)
- Geneva, 14-23 September 2016
  - Contributions (23)
  - Collective letter
  - Reports (4)
  - TD [GEN] (157)
- Geneva, 20-29 January 2016
  - Contributions (32)
  - Collective letter
  - Reports (4)
  - TD [GEN] (193)
- Recently posted SG 2 documents
- Documents in the SG 2 FTP Area
- Search for SG 2 docs

SG3
- Geneva, 7 November 2025
  - Contributions (2)
  - Collective letter
  - TD [GEN] (33)
  - TD [PLEN] (13)
- Geneva, 8-17 April 2025
  - Contributions (57)
  - Collective letter
  - Reports (6)
  - TD [GEN] (76)
  - TD [PLEN] (41)
  - TD [WP1] (3)
  - TD [WP2] (8)
  - TD [WP3] (8)
  - TDWP4 (6)
- Geneva, 9-18 July 2024
  - Contributions (48)
  - Collective letter
  - Reports (7)
  - TD [GEN] (63)
  - TD [PLEN] (35)
  - TD [WP1] (6)
  - TD [WP2] (9)
  - TD [WP3] (6)
  - TDWP4 (10)
- Geneva, 10 November 2023
  - Contributions (2)
  - Collective letter
  - Reports (2)
  - TD [GEN] (60)
  - TD [PLEN] (33)
- Geneva, 1-10 March 2023
  - Contributions (61)
  - Collective letter
  - Reports (6)
  - TD [GEN] (32)
  - TD [PLEN] (43)
  - TD [WP1] (4)
  - TD [WP2] (5)
  - TD [WP3] (6)
  - TDWP4 (5)
- Geneva, 11 November 2022
  - Contributions (7)
  - Collective letter
  - Reports (1)
  - TD [GEN] (44)
  - TD [PLEN] (34)
- Geneva, 23-27 May 2022
  - Contributions (22)
  - Collective letter
  - Reports (5)
  - TD [GEN] (39)
  - TD [PLEN] (43)
  - TD [WP1] (1)
  - TD [WP2] (1)
  - TD [WP3] (1)
  - TDWP4 (2)
- E-Meeting, 13-17 December 2021
  - Contributions (11)
  - Collective letter
  - Reports (5)
  - TD [GEN] (44)
  - TD [PLEN] (42)
  - TD [WP1] (2)
  - TD [WP2] (2)
  - TD [WP3] (3)
  - TDWP4 (3)
- E-Meeting, 24-28 May 2021
  - Contributions (16)
  - Collective letter
  - Reports (6)
  - TD [GEN] (35)
  - TD [PLEN] (49)
  - TD [WP1] (6)
  - TD [WP2] (4)
  - TD [WP3] (2)
  - TDWP4 (11)
- E-Meeting, 24-28 August 2020
  - Contributions (26)
  - Collective letter
  - Reports (6)
  - TD [GEN] (30)
  - TD [PLEN] (55)
  - TD [WP1] (1)
  - TD [WP2] (1)
  - TD [WP3] (1)
  - TDWP4 (2)
- E-Meeting, 31 March - 9 April 2020
  - Contributions (48)
  - Collective letter
  - Reports (8)
  - TD [GEN] (63)
  - TD [PLEN] (60)
  - TD [WP1] (6)
  - TD [WP2] (8)
  - TD [WP3] (5)
  - TDWP4 (9)
- Geneva, 23 April - 2 May 2019
  - Contributions (85)
  - Collective letter
  - Reports (6)
  - TD [GEN] (90)
  - TD [PLEN] (56)
  - TD [WP1] (11)
  - TD [WP2] (17)
  - TD [WP3] (5)
  - TDWP4 (7)
- Geneva, 9-18 April 2018
  - Contributions (86)
  - Collective letter
  - Reports (8)
  - TD [GEN] (70)
  - TD [PLEN] (45)
  - TD [WP1] (11)
  - TD [WP2] (15)
  - TD [WP3] (8)
  - TDWP4 (9)
- Geneva, 5-13 April 2017
  - Contributions (143)
  - Collective letter
  - Reports (5)
  - TD [GEN] (57)
  - TD [PLEN] (54)
  - TD [WP1] (9)
  - TD [WP2] (10)
  - TD [WP3] (7)
  - TDWP4 (3)
- Geneva, 22 February - 1 March 2016
  - Contributions (141)
  - Collective letter
  - Reports (9)
  - TD [PLEN] (109)
- Recently posted SG 3 documents
- Documents in the SG 3 FTP Area
- Search for SG 3 docs

SG5
- Geneva, 29 October - 6 November 2025
  - Contributions (14)
  - Collective letter
  - TD [GEN] (133)
- Geneva, 3-12 June 2025
  - Contributions (198)
  - Collective letter
  - TD [GEN] (484)
- Wroclaw, 17-21 June 2024
  - Contributions (148)
  - Collective letter
  - Reports (1)
  - TD [GEN] (435)
- Geneva, 13-22 November 2023
  - Contributions (131)
  - Collective letter
  - Reports (1)
  - TD [GEN] (309)
- Sophia Antipolis, 13-23 June 2023
  - Contributions (129)
  - Collective letter
  - Reports (1)
  - TD [GEN] (349)
- E-Meeting, 9 February 2023 (WP2/5)
  - Contributions (18)
  - Collective letter
  - Reports (1)
  - TD [GEN] (42)
- E-Meeting, 5 December 2022
  - Collective letter
  - Reports (1)
  - TD [GEN] (7)
- Rome, 17-27 October 2022
  - Contributions (84)
  - Collective letter
  - Reports (1)
  - TD [GEN] (271)
- Geneva, 21 June - 1 July 2022
  - Contributions (99)
  - Collective letter
  - Reports (1)
  - TD [GEN] (311)
- E-Meeting, 30 November - 10 December 2021
  - Contributions (89)
  - Collective letter
  - Reports (1)
  - TD [GEN] (282)
- E-Meeting, 11-20 May 2021
  - Contributions (70)
  - Collective letter
  - Reports (1)
  - TD [GEN] (280)
- E-Meeting, 19-23 October 2020
  - Contributions (64)
  - Collective letter
  - Reports (1)
  - TD [GEN] (204)
- E-Meeting, 11-20 May 2020
  - Contributions (75)
  - Collective letter
  - Reports (1)
  - TD [GEN] (236)
- Geneva, 16-20 September 2019
  - Contributions (74)
  - Collective letter
  - Reports (1)
  - TD [GEN] (178)
- Geneva, 13-22 May 2019
  - Contributions (121)
  - Collective letter
  - Reports (1)
  - TD [GEN] (239)
- Geneva, 11-21 September 2018
  - Contributions (132)
  - Collective letter
  - Reports (1)
  - TD [GEN] (228)
- Geneva, 21-25 May 2018 (WP1/5)
  - Contributions (62)
  - Collective letter
  - Reports (1)
  - TD [GEN] (56)
- Geneva, 5-9 March 2018 (WP2/5)
  - Contributions (32)
  - Collective letter
  - Reports (1)
  - TD [GEN] (77)
- Sophia Antipolis, 13-22 November 2017
  - Contributions (106)
  - Collective letter
  - Reports (1)
  - TD [GEN] (196)
- Geneva, 15-24 May 2017
  - Contributions (77)
  - Collective letter
  - Reports (1)
  - TD [GEN] (226)
- Geneva, 10-14 October 2016
  - Contributions (80)
  - Collective letter
  - Reports (1)
  - TD [GEN] (255)
- Kuala Lumpur, 20-27 April 2016
  - Contributions (107)
  - Reports (1)
  - TD [GEN] (247)
- Geneva, 12-23 October 2015
  - Contributions (136)
  - Collective letter
  - Reports (1)
  - TD [GEN] (335)
- Recently posted SG 5 documents
- Documents in the SG 5 FTP Area
- Search for SG 5 docs

SG11
- Geneva, 17-26 November 2025
  - Contributions (6)
  - Collective letter
  - TD [GEN] (172)
- Geneva, 19-28 February 2025
  - Contributions (151)
  - Collective letter
  - Reports (6)
  - TD [GEN] (378)
- Geneva, 1-10 May 2024
  - Contributions (137)
  - Collective letter
  - Reports (7)
  - TD [GEN] (345)
- E-Meeting, 7 February 2024 (WP 1/11 & 2/11 3/11 & 4/11)
  - Contributions (5)
  - Collective letter
  - Reports (4)
  - TD [WP1] (73)
  - TD [WP2] (50)
  - TD [WP3] (37)
  - TDWP4 (16)
- Geneva, 10-20 October 2023
  - Contributions (134)
  - Collective letter
  - Reports (5)
  - TD [GEN] (274)
- Geneva, 10-19 May 2023
  - Contributions (126)
  - Collective letter
  - Reports (5)
  - TD [GEN] (286)
- Geneva, 7 December 2022 (WP 1/11 & 2/11 & 3/11 )
  - Contributions (3)
  - Collective letter
  - Reports (3)
  - TD [WP1] (90)
  - TD [WP2] (53)
  - TD [WP3] (37)
- Geneva, 6-15 July 2022
  - Contributions (88)
  - Collective letter
  - Reports (5)
  - TD [GEN] (237)
- E-Meeting, 1-10 December 2021
  - Contributions (67)
  - Collective letter
  - Reports (5)
  - TD [GEN] (224)
- E-Meeting, 15-16 July 2021 (WP 1/11 & 2/11 & 3/11 )
  - Contributions (4)
  - Collective letter
  - Reports (3)
  - TD [WP1] (49)
  - TD [WP2] (29)
  - TD [WP3] (36)
- E-Meeting, 17-26 March 2021
  - Contributions (50)
  - Collective letter
  - Reports (5)
  - TD [GEN] (149)
- E-Meeting, 18 December 2020
  - Contributions (11)
  - Collective letter
  - Reports (1)
  - TD [GEN] (41)
- E-Meeting, 4 December 2020 (WP 3/11)
  - Collective letter
  - Reports (1)
  - TD [WP3] (20)
- E-Meeting, 19 November 2020 (WP 1/11)
  - Collective letter
  - Reports (1)
  - TD [WP1] (13)
- E-Meeting, 22-31 July 2020
  - Contributions (93)
  - Collective letter
  - Reports (4)
  - TD [GEN] (196)
- Geneva, 4-13 March 2020
  - Contributions (85)
  - Collective letter
  - Reports (5)
  - TD [GEN] (186)
- Geneva, 16-25 October 2019
  - Contributions (85)
  - Collective letter
  - Reports (4)
  - TD [GEN] (214)
- Geneva, 26 June 2019 (WP 1/11 & 2/11 & 3/11 )
  - Collective letter
  - Reports (4)
  - TD [WP1] (34)
  - TD [WP2] (23)
  - TD [WP3] (27)
- Geneva, 6-15 March 2019
  - Contributions (65)
  - Collective letter
  - Reports (4)
  - TD [GEN] (219)
- Geneva, 31 October 2018 (WP 2/11 & 3/11 )
  - Contributions (1)
  - Collective letter
  - Reports (2)
  - TD [WP2] (25)
  - TD [WP3] (15)
- Geneva, 18-27 July 2018
  - Contributions (76)
  - Collective letter
  - Reports (5)
  - TD [GEN] (221)
- Geneva, 8-17 November 2017
  - Contributions (84)
  - Collective letter
  - Reports (4)
  - TD [GEN] (249)
- Geneva, 12 July 2017
  - Contributions (1)
- Geneva, 12-13 July 2017 (WP 1/11 & 2/11)
  - Contributions (1)
- Geneva, 12 July 2017
  - Reports (2)
- Geneva, 12-13 July 2017 (WP 1/11 & 2/11)
  - Reports (2)
- Geneva, 12 July 2017
  - TD [WP1] (18)
  - TD [WP2] (22)
- Geneva, 12-13 July 2017 (WP 1/11 & 2/11)
  - TD [WP1] (18)
  - TD [WP2] (22)
- Geneva, 6-15 February 2017
  - Contributions (62)
  - Collective letter
  - Reports (4)
  - TD [GEN] (173)
- Geneva, 27 June - 6 July 2016
  - Contributions (85)
  - Collective letter
  - Reports (5)
  - TD [GEN] (293)
- Geneva, 29 April 2016 (WP 3/11)
  - Contributions (5)
  - Collective letter
  - TD [WP3] (25)
- Sophia Antipolis, 24 March 2016 (WP 4/11)
  - Collective letter
  - TDWP4 (47)
- Geneva, 2-11 December 2015
  - Contributions (137)
  - Collective letter
  - Reports (7)
  - TD [GEN] (249)
- Recently posted SG 11 documents
- Documents in the SG 11 FTP Area
- Search for SG 11 docs

SG12
- Geneva, 9-18 September 2025
  - Contributions (68)
  - Collective letter
  - Reports (4)
  - TD [GEN] (159)
- E-Meeting, 25 March 2025 (WP1/12)
  - Contributions (1)
  - Collective letter
  - Reports (1)
  - TD [GEN] (4)
- Geneva, 14-23 January 2025
  - Contributions (37)
  - Collective letter
  - Reports (4)
  - TD [GEN] (165)
- E-Meeting, 29 August 2024 (WP2/12)
  - Contributions (5)
  - Collective letter
  - Reports (1)
  - TD [GEN] (7)
- Geneva, 16-25 April 2024
  - Contributions (62)
  - Collective letter
  - Reports (4)
  - TD [GEN] (166)
- Mexico City, 19-28 September 2023
  - Contributions (63)
  - Collective letter
  - Reports (4)
  - TD [GEN] (158)
- Geneva, 18-26 January 2023
  - Contributions (60)
  - Collective letter
  - Reports (4)
  - TD [GEN] (165)
- Geneva, 7-17 June 2022
  - Contributions (61)
  - Collective letter
  - Reports (4)
  - TD [GEN] (159)
- E-Meeting, 12-21 October 2021
  - Contributions (47)
  - Collective letter
  - Reports (4)
  - TD [GEN] (113)
- E-Meeting, 4-13 May 2021
  - Contributions (49)
  - Collective letter
  - Reports (4)
  - TD [GEN] (140)
- E-Meeting, 6-7 January 2021
  - Contributions (2)
  - Collective letter
  - Reports (1)
  - TD [GEN] (29)
- E-Meeting, 7-11 September 2020
  - Contributions (21)
  - Collective letter
  - Reports (5)
  - TD [GEN] (119)
- E-Meeting, 15-24 April 2020
  - Contributions (43)
  - Collective letter
  - Reports (4)
  - TD [GEN] (122)
- Geneva, 26 November - 5 December 2019
  - Contributions (52)
  - Collective letter
  - Reports (4)
  - TD [GEN] (162)
- Stockholm, 4 September 2019 (WP3/12)
  - Contributions (3)
  - Collective letter
  - Reports (1)
  - TD [GEN] (16)
- Geneva, 7-16 May 2019
  - Contributions (76)
  - Collective letter
  - Reports (5)
  - TD [GEN] (181)
- Geneva, 27 November - 6 December 2018
  - Contributions (88)
  - Collective letter
  - Reports (4)
  - TD [GEN] (169)
- Geneva, 1-10 May 2018
  - Contributions (74)
  - Collective letter
  - Reports (4)
  - TD [GEN] (184)
- Geneva, 15 February 2018 (WP2/12)
  - Contributions (2)
  - Collective letter
  - Reports (1)
  - TD [GEN] (8)
- Geneva, 19-28 September 2017
  - Contributions (81)
  - Collective letter
  - Reports (4)
  - TD [GEN] (217)
- Geneva, 10-19 January 2017
  - Contributions (70)
  - Collective letter
  - Reports (4)
  - TD [GEN] (165)
- Munich, 20 October 2016 (WP 2/12)
  - Collective letter
- Munich, 20 October 2016 (WP 3/12)
  - Collective letter
- Munich, 20 October 2016 (WP 2/12)
  - Reports (2)
- Munich, 20 October 2016 (WP 3/12)
  - Reports (2)
- Munich, 20 October 2016 (WP 2/12)
  - TD [GEN] (13)
- Munich, 20 October 2016 (WP 3/12)
  - TD [GEN] (13)
- Geneva, 7-16 June 2016
  - Contributions (52)
  - Collective letter
  - Reports (4)
  - TD [GEN] (153)
- Geneva, 12-21 January 2016
  - Contributions (63)
  - Collective letter
  - Reports (4)
  - TD [GEN] (151)
- Recently posted SG 12 documents
- Documents in the SG 12 FTP Area
- Search for SG 12 docs

SG13
- Tashkent, 28 October - 6 November 2025
  - Contributions (4)
  - Collective letter
  - TD [GEN] (8)
  - TD [PLEN] (8)
  - TD [WP1] (19)
  - TD [WP3] (12)
  - TDWP4 (28)
- Geneva, 25 July 2025 (WP 1/13, 2/13, 3/13 & 4/13)
  - Contributions (50)
  - Collective letter
  - Reports (7)
  - TD [GEN] (39)
  - TD [WP1] (104)
  - TD [WP2] (46)
  - TD [WP3] (69)
  - TDWP4 (104)
- Geneva, 3-14 March 2025
  - Contributions (278)
  - Collective letter
  - Reports (2)
  - TD [GEN] (82)
  - TD [PLEN] (71)
  - TD [WP1] (118)
  - TD [WP2] (63)
  - TD [WP3] (86)
  - TDWP4 (129)
- Geneva, 15-26 July 2024
  - Contributions (306)
  - Collective letter
  - Reports (6)
  - TD [GEN] (115)
  - TD [PLEN] (88)
  - TD [WP1] (188)
  - TD [WP2] (81)
  - TD [WP3] (138)
- Geneva, 4-15 March 2024
  - Contributions (261)
  - Collective letter
  - Reports (5)
  - TD [GEN] (59)
  - TD [PLEN] (52)
  - TD [WP1] (174)
  - TD [WP2] (59)
  - TD [WP3] (102)
- Geneva, 23 October - 3 November 2023
  - Contributions (248)
  - Collective letter
  - Reports (4)
  - TD [GEN] (62)
  - TD [PLEN] (69)
  - TD [WP1] (149)
  - TD [WP2] (77)
  - TD [WP3] (94)
- Geneva, 26 July 2023 (WP 1/13, 2/13 & 3/13)
  - Contributions (5)
  - Collective letter
  - Reports (2)
  - TD [GEN] (38)
  - TD [WP1] (89)
  - TD [WP2] (45)
  - TD [WP3] (72)
- Geneva, 13-24 March 2023
  - Contributions (225)
  - Collective letter
  - Reports (2)
  - TD [GEN] (37)
  - TD [PLEN] (57)
  - TD [WP1] (124)
  - TD [WP2] (59)
  - TD [WP3] (84)
- Geneva, 25 November 2022 (WP 1/13, 2/13 & 3/13)
  - Collective letter
  - Reports (4)
  - TD [GEN] (1)
  - TD [WP1] (119)
  - TD [WP2] (48)
  - TD [WP3] (89)
- Geneva, 14 November 2022
  - Contributions (47)
  - Collective letter
  - Reports (1)
  - TD [GEN] (52)
  - TD [PLEN] (15)
- Geneva, 4-15 July 2022
  - Contributions (201)
  - Collective letter
  - Reports (2)
  - TD [GEN] (58)
  - TD [PLEN] (55)
  - TD [WP1] (138)
  - TD [WP2] (82)
  - TD [WP3] (83)
- E-Meeting, 29 November - 10 December 2021
  - Contributions (190)
  - Collective letter
  - Reports (1)
  - TD [GEN] (33)
  - TD [PLEN] (50)
  - TD [WP1] (102)
  - TD [WP2] (72)
  - TD [WP3] (72)
- E-Meeting, 16 July 2021 (WP 1/13, 2/13 & 3/13)
  - Collective letter
  - Reports (2)
  - TD [GEN] (46)
  - TD [WP1] (80)
  - TD [WP2] (69)
  - TD [WP3] (66)
- E-Meeting, 1-12 March 2021
  - Contributions (142)
  - Collective letter
  - Reports (4)
  - TD [GEN] (14)
  - TD [PLEN] (32)
  - TD [WP1] (68)
  - TD [WP2] (49)
  - TD [WP3] (36)
- E-Meeting, 17 December 2020
  - Collective letter
  - Reports (1)
  - TD [GEN] (4)
  - TD [PLEN] (24)
  - TD [WP1] (47)
  - TD [WP2] (27)
  - TD [WP3] (25)
- E-Meeting, 7 December 2020
  - Contributions (33)
  - Collective letter
  - Reports (1)
  - TD [GEN] (33)
  - TD [PLEN] (6)
  - TD [WP1] (12)
  - TD [WP2] (14)
  - TD [WP3] (14)
- E-Meeting, 20-31 July 2020
  - Contributions (189)
  - Collective letter
  - Reports (4)
  - TD [GEN] (46)
  - TD [PLEN] (57)
  - TD [WP1] (97)
  - TD [WP2] (75)
  - TD [WP3] (86)
- Geneva, 13 March 2020
  - Contributions (41)
  - Collective letter
  - Reports (1)
  - TD [GEN] (38)
  - TD [PLEN] (35)
  - TD [WP1] (65)
  - TD [WP2] (31)
  - TD [WP3] (63)
- Geneva, 14-25 October 2019
  - Contributions (168)
  - Collective letter
  - Reports (4)
  - TD [GEN] (31)
  - TD [PLEN] (49)
  - TD [WP1] (82)
  - TD [WP2] (61)
  - TD [WP3] (62)
- Geneva, 28 June 2019 (WP 1/13, 2/13 & 3/13)
  - Contributions (4)
  - Collective letter
  - Reports (3)
  - TD [GEN] (20)
  - TD [WP1] (48)
  - TD [WP2] (63)
  - TD [WP3] (38)
- Victoria Falls, 4-14 March 2019
  - Contributions (111)
  - Reports (4)
  - TD [GEN] (41)
  - TD [PLEN] (46)
  - TD [WP1] (50)
  - TD [WP2] (41)
  - TD [WP3] (40)
- Geneva, 2 November 2018 (WP 1/13, 2/13 & 3/13)
  - Contributions (3)
  - Collective letter
  - TD [GEN] (32)
  - TD [WP1] (48)
  - TD [WP2] (60)
  - TD [WP3] (30)
- Geneva, 16-27 July 2018
  - Contributions (155)
  - Collective letter
  - Reports (6)
  - TD [GEN] (28)
  - TD [PLEN] (37)
  - TD [WP1] (49)
  - TD [WP2] (57)
  - TD [WP3] (44)
- Geneva, 18 April 2018 (WP 1/13, 2/13 & 3/13)
  - Contributions (21)
  - Collective letter
  - Reports (3)
  - TD [GEN] (30)
  - TD [WP1] (51)
  - TD [WP2] (50)
  - TD [WP3] (30)
- Geneva, 6-17 November 2017
  - Contributions (170)
  - Collective letter
  - Reports (5)
  - TD [GEN] (29)
  - TD [PLEN] (54)
  - TD [WP1] (58)
  - TD [WP2] (65)
  - TD [WP3] (36)
- Geneva, 14 July 2017 (WP 1/13, 2/13 & 3/13)
  - Contributions (9)
  - Collective letter
  - Reports (3)
  - TD [GEN] (32)
  - TD [WP1] (51)
  - TD [WP2] (63)
  - TD [WP3] (39)
- Geneva, 6-17 February 2017
  - Contributions (153)
  - Collective letter
  - Reports (5)
  - TD [GEN] (127)
  - TD [PLEN] (49)
  - TD [WP1] (45)
  - TD [WP2] (59)
  - TD [WP3] (24)
- Geneva, 27 June - 8 July 2016
  - Contributions (211)
  - Collective letter
  - Reports (1)
  - TD [GEN] (9)
  - TD [PLEN] (37)
  - TD [WP1] (29)
  - TD [WP2] (76)
  - TD [WP3] (37)
- Geneva, 29 April 2016
  - Contributions (40)
  - Collective letter
  - Reports (1)
  - TD [GEN] (19)
  - TD [PLEN] (27)
  - TD [WP1] (21)
  - TD [WP2] (59)
  - TD [WP3] (39)
- Geneva, 30 November - 11 December 2015
  - Contributions (248)
  - Collective letter
  - Reports (2)
  - TD [GEN] (14)
  - TD [PLEN] (50)
  - TD [WP1] (42)
  - TD [WP2] (70)
  - TD [WP3] (46)
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SG15
- Geneva, 13-24 October 2025
  - Contributions (372)
  - Collective letter
  - TD [GEN] (64)
  - TD [PLEN] (65)
  - TD [WP1] (28)
  - TD [WP2] (50)
  - TD [WP3] (62)
- Geneva, 17-28 March 2025
  - Contributions (389)
  - Collective letter
  - Reports (4)
  - TD [GEN] (97)
  - TD [PLEN] (98)
  - TD [WP1] (64)
  - TD [WP2] (62)
  - TD [WP3] (92)
- Montreal, 1-12 July 2024
  - Contributions (347)
  - Collective letter
  - Reports (4)
  - TD [GEN] (104)
  - TD [PLEN] (105)
  - TD [WP1] (57)
  - TD [WP2] (67)
  - TD [WP3] (89)
- Geneva, 20 November - 1 December 2023
  - Contributions (291)
  - Collective letter
  - Reports (4)
  - TD [GEN] (98)
  - TD [PLEN] (112)
  - TD [WP1] (61)
  - TD [WP2] (62)
  - TD [WP3] (99)
- Geneva, 17-28 April 2023
  - Contributions (290)
  - Collective letter
  - Reports (5)
  - TD [GEN] (80)
  - TD [PLEN] (72)
  - TD [WP1] (72)
  - TD [WP2] (49)
  - TD [WP3] (94)
- Geneva, 19-30 September 2022
  - Contributions (312)
  - Collective letter
  - Reports (5)
  - TD [GEN] (79)
  - TD [PLEN] (109)
  - TD [WP1] (84)
  - TD [WP2] (36)
  - TD [WP3] (87)
- E-Meeting, 6-17 December 2021
  - Contributions (256)
  - Collective letter
  - Reports (4)
  - TD [GEN] (87)
  - TD [PLEN] (94)
  - TD [WP1] (88)
  - TD [WP2] (37)
  - TD [WP3] (116)
- E-Meeting, 12-23 April 2021
  - Contributions (332)
  - Collective letter
  - Reports (4)
  - TD [GEN] (48)
  - TD [PLEN] (92)
  - TD [WP1] (94)
  - TD [WP2] (40)
  - TD [WP3] (101)
- E-Meeting, 7-18 September 2020
  - Contributions (301)
  - Collective letter
  - Reports (4)
  - TD [GEN] (69)
  - TD [PLEN] (116)
  - TD [WP1] (65)
  - TD [WP2] (51)
  - TD [WP3] (119)
- Geneva, 27 January - 7 February 2020
  - Contributions (436)
  - Collective letter
  - Reports (4)
  - TD [GEN] (58)
  - TD [PLEN] (100)
  - TD [WP1] (82)
  - TD [WP2] (50)
  - TD [WP3] (121)
- Geneva, 1-12 July 2019
  - Contributions (380)
  - Collective letter
  - Reports (6)
  - TD [GEN] (81)
  - TD [PLEN] (87)
  - TD [WP1] (91)
  - TD [WP2] (39)
  - TD [WP3] (105)
- Geneva, 8-19 October 2018
  - Contributions (409)
  - Collective letter
  - Reports (5)
  - TD [GEN] (79)
  - TD [PLEN] (122)
  - TD [WP1] (90)
  - TD [WP2] (44)
  - TD [WP3] (108)
- Geneva, 29 January - 9 February 2018
  - Contributions (346)
  - Collective letter
  - Reports (4)
  - TD [GEN] (64)
  - TD [PLEN] (113)
  - TD [WP1] (87)
  - TD [WP2] (55)
  - TD [WP3] (114)
- Geneva, 19-30 June 2017
  - Contributions (398)
  - Collective letter
  - Reports (4)
  - TD [GEN] (81)
  - TD [PLEN] (110)
  - TD [WP1] (118)
  - TD [WP2] (60)
  - TD [WP3] (116)
- Geneva, 19-30 September 2016
  - Contributions (344)
  - Collective letter
  - Reports (6)
  - TD [GEN] (46)
  - TD [PLEN] (111)
  - TD [WP1] (102)
  - TD [WP2] (64)
  - TD [WP3] (117)
- Geneva, 15-26 February 2016
  - Contributions (371)
  - Collective letter
  - Reports (6)
  - TD [GEN] (50)
  - TD [PLEN] (113)
  - TD [WP1] (124)
  - TD [WP2] (73)
  - TD [WP3] (128)
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SG17
- Geneva, 3-11 December 2025
  - Collective letter
  - TD [GEN] (72)
  - TD [PLEN] (49)
  - TD [WP1] (28)
  - TD [WP2] (26)
- Virtual Event, 10 October 2025 (WP3/17)
  - Collective letter
  - TD [WP3] (5)
- Virtual Event, 3-4 September 2025 (WP4/17)
  - Contributions (4)
  - Collective letter
  - TDWP4 (28)
- Geneva, 8-17 April 2025
  - Contributions (192)
  - Collective letter
  - Reports (15)
  - TD [GEN] (104)
  - TD [PLEN] (93)
  - TD [WP1] (67)
  - TD [WP2] (76)
  - TD [WP3] (71)
  - TDWP4 (97)
- Geneva, 2-6 September 2024
  - Contributions (155)
  - Collective letter
  - Reports (12)
  - TD [PLEN] (362)
- E-Meeting, 11-12 July 2024
  - Contributions (7)
  - Collective letter
  - TD [PLEN] (138)
- Geneva, 20 February - 1 March 2024
  - Contributions (187)
  - Collective letter
  - Reports (14)
  - TD [PLEN] (520)
- Goyang, 29 August - 8 September 2023
  - Contributions (154)
  - Collective letter
  - Reports (14)
  - TD [PLEN] (415)
- E-Meeting, 8 May 2023 (WP3/17)
  - Collective letter
  - Reports (1)
  - TD [PLEN] (8)
- Geneva, 21 February - 3 March 2023
  - Contributions (119)
  - Collective letter
  - Reports (12)
  - TD [PLEN] (396)
- Geneva, 23 August - 2 September 2022
  - Contributions (104)
  - Collective letter
  - Reports (17)
  - TD [PLEN] (344)
- E-Meeting, 10-20 May 2022
  - Contributions (101)
  - Collective letter
  - Reports (9)
  - TD [PLEN] (331)
- E-Meeting, 7 January 2022
  - Contributions (1)
  - Collective letter
  - Reports (2)
  - TD [PLEN] (120)
- E-Meeting, 24 August - 3 September 2021
  - Contributions (98)
  - Collective letter
  - Reports (17)
  - TD [PLEN] (336)
- E-Meeting, 20-30 April 2021
  - Contributions (104)
  - Collective letter
  - Reports (7)
  - TD [PLEN] (307)
- E-Meeting, 7 January 2021
  - Contributions (2)
  - Collective letter
  - Reports (2)
  - TD [PLEN] (44)
- E-Meeting, 24 August - 3 September 2020
  - Contributions (113)
  - Collective letter
  - Reports (9)
  - TD [PLEN] (434)
- E-Meeting, 29 May 2020
  - Collective letter
  - Reports (1)
  - TD [PLEN] (35)
- E-Meeting, 17-26 March 2020
  - Contributions (122)
  - Collective letter
  - TD [PLEN] (441)
- Geneva, 27 August - 5 September 2019
  - Contributions (157)
  - Collective letter
  - Reports (29)
  - TD [PLEN] (509)
- Geneva, 22-30 January 2019
  - Contributions (121)
  - Collective letter
  - Reports (5)
  - TD [PLEN] (381)
- Geneva, 29 August - 7 September 2018
  - Contributions (151)
  - Collective letter
  - Reports (8)
  - TD [PLEN] (424)
- Geneva, 20-29 March 2018
  - Contributions (120)
  - Collective letter
  - Reports (7)
  - TD [PLEN] (395)
- Geneva, 29 August - 6 September 2017
  - Contributions (109)
  - Collective letter
  - Reports (8)
  - TD [PLEN] (426)
- Geneva, 22-30 March 2017
  - Contributions (81)
  - Collective letter
  - Reports (9)
  - TD [PLEN] (380)
- Geneva, 29 August - 7 September 2016
  - Contributions (67)
  - Collective letter
  - Reports (14)
  - TD [PLEN] (391)
- Geneva, 14-23 March 2016
  - Contributions (83)
  - Collective letter
  - Reports (9)
  - TD [PLEN] (418)
- Recently posted SG 17 documents
- Documents in the SG 17 FTP Area
- Search for SG 17 docs

SG20
- Geneva, 15-26 September 2025
  - Contributions (230)
  - Collective letter
  - Reports (9)
  - TD [GEN] (569)
- Geneva, 15-24 January 2025
  - Contributions (155)
  - Collective letter
  - Reports (1)
  - TD [GEN] (386)
- Geneva, 1-12 July 2024
  - Contributions (158)
  - Collective letter
  - Reports (21)
  - TD [GEN] (532)
- Arusha, 13-22 September 2023
  - Contributions (118)
  - Collective letter
  - Reports (7)
  - TD [GEN] (362)
- Geneva, 30 January - 10 February 2023
  - Contributions (125)
  - Collective letter
  - Reports (3)
  - TD [GEN] (329)
- Geneva, 18-28 July 2022
  - Contributions (121)
  - Collective letter
  - Reports (1)
  - TD [GEN] (382)
- E-Meeting, 3 February 2022
  - Collective letter
  - Reports (3)
  - TD [GEN] (7)
- E-Meeting, 11-21 October 2021
  - Contributions (94)
  - Collective letter
  - Reports (3)
  - TD [GEN] (239)
- E-Meeting, 17-27 May 2021
  - Contributions (94)
  - Collective letter
  - Reports (1)
  - TD [GEN] (287)
- E-Meeting, 16 December 2020
  - Collective letter
  - Reports (1)
  - TD [GEN] (18)
- E-Meeting, 6 November 2020 (WP1/20)
  - Collective letter
  - Reports (4)
  - TD [GEN] (96)
- E-Meeting, 6-16 July 2020
  - Contributions (95)
  - Collective letter
  - Reports (1)
  - TD [GEN] (289)
- Geneva, 25 November - 6 December 2019
  - Contributions (93)
  - Collective letter
  - Reports (1)
  - TD [GEN] (281)
- Geneva, 9-18 April 2019
  - Contributions (85)
  - Collective letter
  - Reports (2)
  - TD [GEN] (206)
- Wuxi, 3-13 December 2018
  - Contributions (127)
  - Collective letter
  - Reports (1)
  - TD [GEN] (247)
- Cairo (Egypt), 6-16 May 2018
  - Contributions (119)
  - Collective letter
  - Reports (1)
  - TD [GEN] (211)
- Geneva, 24 January 2018 (WP1/20)
  - Contributions (3)
  - Collective letter
  - Reports (2)
  - TD [GEN] (104)
- Geneva, 4-15 September 2017
  - Contributions (157)
  - Collective letter
  - Reports (1)
  - TD [GEN] (307)
- Dubai, 13-23 March 2017
  - Contributions (119)
  - Collective letter
  - Reports (1)
  - TD [GEN] (248)
- Geneva, 25 July - 5 August 2016
  - Contributions (128)
  - Collective letter
  - Reports (2)
  - TD [GEN] (284)
- Singapore, 18-26 January 2016
  - Contributions (92)
  - Collective letter
  - Reports (1)
  - TD [GEN] (171)
- Geneva, 19-23 October 2015
  - Contributions (95)
  - Collective letter
  - Reports (1)
  - TD [GEN] (123)
- Recently posted SG 20 documents
- Documents in the SG 20 FTP Area
- Search for SG 20 docs

SG21
- Geneva, 6-17 October 2025
  - Contributions (280)
  - Collective letter
  - TD [GEN] (132)
  - TD [PLEN] (53)
  - TD [WP1] (30)
  - TD [WP2] (26)
  - TD [WP3] (85)
  - TDWP4 (23)
- Geneva, 4 July 2025 (WP2/21 & WP4/21)
  - Contributions (1)
  - Collective letter
  - Reports (2)
  - TD [WP2] (32)
  - TDWP4 (62)
- Geneva, 13-24 January 2025
  - Contributions (237)
  - Collective letter
  - Reports (7)
  - TD [GEN] (127)
  - TD [PLEN] (107)
  - TD [WP1] (45)
  - TD [WP2] (71)
  - TD [WP3] (73)
  - TDWP4 (91)
- Recently posted SG 21 documents
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ITU-T Study Group Documents