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Home : ITU-T Home : Study Groups : ITU-T Study Group 12
   
Study Group 12 - Performance, QoS and QoE

Actions taken on Recommendations at the 19 March 2009 Study Group 12 plenary

1. Recommendations consented for Last Call (AAP – Recommendation A.8)

1.1 New Recommendations

ITU-T Rec. No. Provisional number Title Question
G.1082 G.IPTV-MMRP Measurement-based methods for improving the robustness of IPTV performance 13/12
P.834.1 P.834.WB Extension of the methodology for the derivation of equipment impairment factors from instrumental models for wideband speech codecs 8/12


1.2 Revised Recommendations

ITU-T Rec. No. Title Question
G.107 The E-model: a computational model for use in transmission planning 8/12
P.57 Artificial ears 5/12
P.310 Transmission characteristics for narrow-band digital handset and headset telephones 3/12
P.342 Transmission characteristics for narrow-band digital hands-free and loudspeaking telephony terminals 3/12
P.833.1 Methodology for the derivation of equipment impairment factors from subjective listening-only tests for wideband speech codecs 8/12


2. Agreed informative texts

  Title Question
G.113 (2007) Amd.1 (03/09) Revised Appendix IV - Provisional planning values for the wideband equipment impairment factor, Ie,wb and the wideband packet loss robustness factor Bpl,wb 10/12
Y.1540 (2007) Amd. 1 (03/09) New Appendix VII - Packet performance parameters for optimization of stream repair techniques and New Appendix VIII - IP-layer capacity framework 17/12
Y.1542 (2006) Amd. 1 (03/09) New Appendix V - Additional considerations for achieving end-to-end performance objectives for NGN environment 11/12


3. Recommendation proposed for deletion

  Title Question
P.82 (11/1988) Method for evaluation of service from the standpoint of speech transmission quality See TSB Circular 31

 

 

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