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Resolution 2 (Study Period 2005 - 2008)
ITU-T Study Group Responsibility and Mandates

Annex C

List of Recommendations under the responsibility of the respective study groups and TSAG in the post-2004 study period,
As modified by TSAG decisions (July 2006)

The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis.

The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU T study groups which, in turn, produce Recommendations on these topics.

The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1.

 
Study Group 2 - Operational aspects of service provision, networks and performance

  • E-series, except those in conjunction with Study Group 17
  • F-series, except those under the responsibility of Study Groups 13, 16 and 17
  • Recommendations of the I.220- , I.230- , I.240- and I.250-series
  • Maintenance of the S-series
 
Study Group 3 - Tariff and accounting principles including related telecommunication economic and policy issues

  • D-series

 
Study Group 4 - Telecommunication management

  • G.850 series
  • M-series
  • O-series
  • Q.513, Q.800-849, Q.940-series
  • V.51/M.729, V.55/O.71
  • X.160- , X.170- , X.700-series
  • Z.300-series
 
Study Group 5 - Protection against electromagnetic environment effects

  • K-series
 
Study Group 6 - Outside Plant and related indoor installations

  • L-series
 
Study Group 9 - Integrated broadband cable networks and television and sound transmission

  • J-series
  • N-series
  • P.900-series
 
Study Group 11 - Signalling requirements and protocols

  • Q-series, except those under the responsibility of Study Groups 4, 13, 15, 16 and 19
  • Maintenance of the U-series
 
Study Group 12 - Performance and quality of service

  • G.100-series, except G.160 , G.180 and G.190-series
  • G.821, G.826, G.827, G.828, G.829, G.8201, G.921 [TSAG 07/2006 decision]
  • G.1000-series
  • I.350-series (including Y.1501/G.820/I.351), I. 371, I.378, I.381
  • P-series, except P.900-series
  • Y.1220 , Y.1530 , Y.1540 , Y.1560-series

 
Study Group 13 - Next Generation Networks

  • F.600-Series
  • G.801, G.802, G.860-series
  • I-series, except those under the responsibility of Study Groups 2, 12, 15, and those having double/triple numbering in other series
  • Q.933 and Q.933 bis
  • X.1-X.25, X.28-X.49, X.60-X.84, X.90-X.159, X.180-X.199, X.272, X.300-series
  • Y-series, except those under the responsibility of Study Groups 12, 15 and 16.
 
Study Group 15 - Optical and other transport network infrastructures

  • G-series except those under the responsibility of Study Groups 4, 12, 13 and 16
  • I.326, I.430 Series, I.414, I.630 and I.700-series except I.751 (see SG 4)
  • Q.500-series except Q.513 (see SG 4)
  • Maintenance of the R-series
  • X.50-series, X.85/Y.1321, X.86/Y.1323, X.87/Y.1324
  • V.38, V.300
  • Y.1300-Y.1309, Y.1330-Y.1359, Y.1700-Y.1709, Y.1720

 
Study Group 16 - Multimedia terminals, systems and applications

  • F.700 Series
  • G.160-series, G.190-series, G.711 and G.720-series, G.760-series (including G.769/Y.1242), G.776.1, G.779.1/Y.1451.1
  • H-series
  • T-series
  • Q.115.1, Q.115.2
  • V-series, except those under the responsibility of Study Group 4 and 15
  • X.26 (V.10) and X.27 (V.11)

 
Study Group 17 - Security, languages and telecommunication software

  • E.104, E.409, E.115 (in conjunction with Study Group 2)
  • F.400-series; F.500-F.549
  • X-series, except those under the responsibility of Study Groups 4, 13, 15, and 16
  • Z-series except Z.300-series

 
Study Group 19 - Mobile Telecommunication Networks

  • Q.10xx series, Q.1700-series

 
TSAG - Telecommunication Standardization Advisory Group

  • A-series Recommendations

 

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Updated : 2008-11-21