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Strzelecki · 06-10-2010, 23:51

What has probably happened here is the the old phone had a connection terminal for the bell wire, which is probably still connected in the BT master socket. Newer phones don't require the bell wire and it's advisable to disconnect it as it can pick up noise as it acts like an antennae. This is what the iPlate filters. If a new phone results in no noise then there is unlikely to be a line fault (doing a quite line test (google) from the BT test socket will confirm this). Another culprit, as already mentioned, is a bad ADSL filter, but street lights, microwaves, hoovers and Christmas light can also cause this problem.

06-10-2010, 23:51	#12
Strzelecki Inactive Join Date: Jan 2004 Location: Essex Age: 43 Services: 80/20Mbps FTTC on Freeola Posts: 871	Re: Noise on line with ADSL modem ... What has probably happened here is the the old phone had a connection terminal for the bell wire, which is probably still connected in the BT master socket. Newer phones don't require the bell wire and it's advisable to disconnect it as it can pick up noise as it acts like an antennae. This is what the iPlate filters. If a new phone results in no noise then there is unlikely to be a line fault (doing a quite line test (google) from the BT test socket will confirm this). Another culprit, as already mentioned, is a bad ADSL filter, but street lights, microwaves, hoovers and Christmas light can also cause this problem.