What are the benefits of using Annex M?
For any form of business connection requirements with ADSL (working from home, mounting office file server resources, sending outbound email, serving web pages or other data from a home or remote office), the main constraint to doing so is the upstream data speed available to you using ADSL. “Standard” ADSL2+ (Annex A) allows a maximum upstream speed of around 1 Megabit. While this is far faster than the arbitrarily limited upstream speeds offered by a number of ADSL providers, business data transmission requirements often demand a higher upstream speed than this, to gain efficient productivity gains. The use of ADSL2+ Annex M mode allows the available ADSL2+ upstream speed to be dramatically increased (typically to speeds of the order of 2Mb/s). This means that common business operations over ADSL such as saving and sending files, and serving data, can occur at around twice the speed they could previously be achieved. The productivity benefits of this are obvious.
