What is Annex M?
The commonly available version of ADSL2+ in use in the Australian broadband marketplace today is called ‘ADSL2+ Annex A’ and it supports a maximum upstream data rate of around 1Mb/s. ADSL2+ Annex M is a new, high speed mode of ADSL2+ which allows the upstream data rate to be increased beyond that Annex A limit. Internode has worked for more than 12 months to have the Australian Network Deployment Rules changed to allow the use of Annex M mode in Australia. Annex M services are now available nationally from Internode on all direct Internode ADSL2+ port based SOHO and Business Extreme plans. The upstream speeds practically achieved using Annex M depend on the same factors that impact downstream ADSL2+ speed – the length and condition of your phone line and the quality of your wiring (amongst others). Typically achieved upstream speeds in our customer base at this time range up to about 2.5 Megabits per second, with typical speeds on good lines in the 1.6 to 2.2 Megabit per second range.
