Amendment 1 to Recommendation ITU-T G.997.1 (2012) contains the following additions and changes:

-           Additional parameter for the reporting of the actually used AELE method.

-           Changes for the control of the INP of ROC.

-           Add support for changes to PSD masks of ITU-T G.993.2 Annex B.

-           Add line status parameters for ITU-T G.993.5.