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2 Gang Secondary Line Phone Socket Satin Chrome Elite Flat
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Master Telephone Socket - Surface
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BT Master NTE5A Telephone Socket & IDC Tool Single Wall Phone Face Plate/Outlet | DIY at B&Q
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Using the test socket on your master socket | BT Business
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Phone Line Relocation Installation
British telephone socket - Wikipedia
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BT Master Single Telephone Socket - Screw Terminals - PSTN Line Wall Face Plate 2/4A - Loops : Amazon.co.uk: DIY & Tools
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Telephone Line Jack Units | Voice Convertors & Modules
