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Self-install BT device reduces interference stemming from extension wiring
BT is selling a new filter that it says will improve the speed and reliability of ADSL broadband connections.
The £14.97 I-Plate, which fits into a BT master phone socket, can increase data rates by as much as 1.5Mbits/sec. "It's quick and easy to fit to the master socket with a screwdriver and there’s no need to disconnect any wires," the company says.
BT does not guarantee speeds will be increased, but even if they are not the connection will be 'stabilised', the company said.
One reason for confusion over advertised DSL broadband speeds is that throughput drops off with distance from an exchange and is also sensitive to interference in the home. This can stem even from extension cables that are not being used, as they act like receiving aerials.
The I-filter, available at the BT Shop, will only work on master sockets bearing a BT logo and with a horizontal line across the front. It will not work on sockets with two jacks, one for the phone and the other for DSL. BT Openreach sockets already have the technology built in.
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Bell wires
I have the relevant master socket, but a year or two ago a BT engineer cut the bell wire in that socket to prevent our ADSL dropping. Does anyone know if the I-plate is still of use to me, or has the cut bell wire obviated its need? Any informed opinion would be welcome. Thanks.
Posted by Dave Faulkner, 16 Jan 2009