The Accelerator is a plate that fits onto phone sockets that will typically help increase broadband speed by 1.5Mb. Its free of charge (£1.20 P&P). You can find out more and order at http://www.bt.com/accelerator.
BT Broadband Accelerator is BT Total Broadband's new name for the I-Plate. Available to BT Total Broadband customers only. Other customers please see http://www.shop.bt.com/iplate.
Limited to one per broadband account. You only need pay the postage of £1.20 A speed increase after fitting an accelerator is not guaranteed especially if you already have a speed close to the maximum limit (8Mb for ADSL or 20Mb for ADSL2+