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Click here to download the ADSLMax Product Sheet
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| What is ADSL MAX?
ADSL MAX is a new higher speed service from BT. MAX provides download speeds of up to 8Mb/s with upload increased from 256 kb/s (standard ADSL) up to 448 kb/s (MAXHomeworker) and 832 kb/s (MAXOffice). Has my exchange been upgraded for MAX service? The ADSLMAX service was launched on 31st March with 99.9% of BT exchanges enabled to provide the higher bandwidth services. Please use the broadband availability checker to check the status for your local exchange. Some 180 exchanges only are not currently scheduled for upgrade - including those without ADSL service or providing Exchange Activate service. What sort of speed might I expect? For many users ADSL Max will provide an increase in line speed. However, MAX is a rate adaptive service and the actual speed that a user will experience will be dependent on the line length and the line quality. It is quite possible for users in close geographical proximity to receive services with different speeds. MAX provides download service at up to 8Mb/s. Although some users may experience line speeds at or close to this rate, the majority are likely to receive line (sync) rates around 6.5Mb/s Actual data throughput speeds will also depend on contention in the external networks and the performance of the remote server etc. Many users report actual throughput at around 50% of downstream line rate. Please note that it is highly likely that different speed tester servers/applications will report widely differing results and at different times. BT do advise that IPstream MAX is delivered over a 'best efforts' network and that no guarantee is given that the line rate seen by End Users will result in throughput above that of the IPstream Home/Office fixed rate services (IPstream Home/Office 2000). Outside of busy periods, services may take advantage of any reduction in the core bandwidth utilisation which may be seen by End Users as an increase in throughput. Will there be an immediate increase in speed? Note: Regrades will take up to 5 working days from order to provision. There will then be a minimum 10 day period whilst the maximum line rate is determined. When a user upgrades to ADSL Max the system will attempt to synchronise the user modem/router and the BT exchange DSLAM to determine the maximum stable rate (MSR). ADSL Max is rate adaptive - the BT system will record upper and lower line rates. Data will be collected for a MINIMUM of 10 DAYS before the lower line rate is rounded down and to become the MSR. The Fault Threshold Rate (FTR) will be set at a level 30% below MSR. There is likely to be some alteration to the line speed whilst the BT system undergoes 'training' to find the MSR. Once the MSR is set this will be the benchmark level for the lifetime of the connection. |
Contact Information
Click here to order your ADSLMax service.
| Registered office: 18 Mansfield Road, Daybrook, Nottingham NG5 6AA. Registered in England No: 3162345 & 3570381 |