Summary

Amendment 2 to Recommendation ITU-T G.993.5 (2010) covers the following functionalities:

1.��������� Definition of flag tones and probe tones (corrigendum)

2.��������� SRA with retransmission (corrigendum)

3.��������� Definition of the SCC (corrigendum)

4.��������� UPBO optimization for ITU-T G.993.5 (addition of a Note)

5.��������� O‑SIGNATURE message (corrigendum)

6.��������� O‑P‑VECTOR 1 signal (corrigendum)

7.��������� Markers (corrigendum)

8.��������� R‑P‑VECTOR 1 signal (corrigendum)

9.��������� O‑TA_UPDATE message (corrigendum)

10.������� R‑ERROR‑FEEDBACK message (corrigendum)

11.������� Downstream Frequency Dependent Pilot Sequence (corrigendum)

12.������� Upstream Frequency Dependent Pilot Sequence (amendment)