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 1. Due to the technology deployed by British Telecom to provide BroadbandMax wholesale services to ISP’s, BroadbandMax is a “best efforts” product, and therefore no guarantee is given that increased data throughput (upload and download speeds) will result from using this product over any other ADSL Broadband package. 2. Due to limitations in the British Telecom network, increases in data throughput may be limited to off-peak periods when data throughput via your local BT exchange would be less. 3. The “potential broadband line rate” quoted during ordering is an estimate only from an analysis based on the quality of your telephone line and using data gathered from lines of a similar nature. The speed given is a Maximum Speed obtainable and does not guarantee this speed will be available and on some lines this speed may not be reached due to contention imposed at the BT exchanges. The actual contention can vary from one exchange to another depending on the capacity of the exchange. BT are solely responsible for maintenance of their exchanges and E247 Limited cannot be held responsible for the knock-on effects caused by contention at the exchange. 4. Once an order for BroadbandMax has been placed, the line will go through a 10 – 20 day training period where the throughput of the line will be analysed and software at the exchange will establish a BRAS profile for the line. During the training period the speed of the line will vary considerably. This is known as an adaptive rate period. 5. The BRAS Profile establishes two values for the line: Maximum Stable rate (MSR) and Fault Threshold Rate (FTR). The MSR states the maximum speed the line can support, and the FTR is used in trouble shooting slow speed issues. The data throughput rate experienced from the line will fall somewhere between these two values and data throughput rates will vary during the day between these two values. Note: BT class acceptable speeds as anything above your FTR divided by your contention rate (10:1 for office users). 6. E247 Limited cannot escalate any speed issues to BT for investigation unless the speed of the line is consistently below the FTR for the telephone line divided by your contention rate. To comply with BTs Fault Reporting Procedures – there must be evidence that the fault is consistent and not a ‘one off’. To do this, at least three BT speed tests need to be undertaken per day for at least three days. Technical support can advise you on how to perform these speed tests and also of your MSR and FTR. Speedtest results from sources other than the BT speedtest will not be accepted. Policy current as at 1st January 2008. |
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