Now the phones are connected by wireless, can I just cut the relay wires leading from the the the main connection box, and remove the various boxes around the house.
If you find the main socket, other sockets around the house are usually just spurs off this one. You can take the face plate off and disconnect them, leaving the main incoming cable in situ.
I would have to check but I don't think you even need the bell wire anymore on household sockets.
My advice, if you have broadband, is to get a master socket which has a built in filter to enable broadband use without many filters on each socket, if you decide to keep the others and have a PC broadband modem fitted to one of them.
Make sure you disconnect the extensions completely,don`t leave any exposed conductors to short out (loop in bt terminology)or cause a rectified loop,if one shorts out it will go pet (permantly engaged tone),if you call out openreach they will happily dissconnect the offending extension and charge you for the privilege(not cheap ).You only need the bell wire after the nte master if you want any extensions to ring,some phones have a built in capacitor so it will still ring with out bell wire.
The NTE5 'master' socket should be the first socket connected to the line, but sometimes it isn't - sometimes the line wiring gets looped through other sockets on it's way to the NTE.
Make sure you know what goes where before you cut anything.
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