Summary
Recommendation ITU‑T G.994.1 provides a flexible
mechanism for digital subscriber line (DSL) transceivers to exchange capabilities
and to select a common mode of operation. It includes parameters relating to
service and application requirements02/ as well as parameters pertinent to
various DSL transceivers. This Recommendation is currently an integral part
of the start-up procedure for Recommendations ITU‑T G.991.2, ITU-T
G.992.1, ITU-T G.992.2, ITU-T G.992.3, ITU-T G.992.4, ITU-T G.992.5, ITU-T
G.993.1, ITU-T G.993.2, ITU-T G.993.5, ITU-T G.9701, ITU-T G.9702 and ITU-T
G.9711. It is anticipated that future DSL Recommendations will also be able
to make use of this Recommendation. Provisions are also included for
exchanging non-standard information.
Amendment 1 to ITU-T Rec G.994.1 includes the following
new material
– Add codepoints for the support of G.fastback Recommendation.
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