10 Best Telephone Master Socket Box Line Extension Cable Deals

10 Best telephone master socket box line extension cable deals - November 2025

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Last Updated: 25-11-2025

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1STec 30m Genuine BT CW1308 6 Core 3 Twisted Pair Telephone Master or extension Socket FTTC Broadband Extension Wire with 2 Grommets IDC Insertion Tool 4mm Clips Printed Instructions 30 Metre White

1STec

9.8

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DAVOX BT Openreach NTE5C MK2 Master Telephone socket + MK4 Faceplate + Back Box - Combination Socket for Fibre Broadband + Filtered Telephone Main Line BT431a for Phone RJ11/RJ45 Data

DAVOX

9.6

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Best value

rhinocables BT Telephone Extension Cable, Male Plug to Female Socket Box Lead Wired for UK Landline Phone Cord Extension, Home and Office, Fax, Modem, White (10m)

rhinocables

9.5

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1STec 2/3a Surface Mount Telephone Extension Socket + Backbox + IDC Tool Line Jack for Creating Extra Phone Point Connections (2/3a + Back Box)

1STec

9.2

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rhinocables BT Telephone Extension Cable, Male Plug to Female Socket Box Lead Wired for UK Landline Phone Cord Extension, Home and Office, Fax, Modem, White (5m)

rhinocables

9.1

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Ancable BT Telephone Extension Cable 5M, Male to Female 6-Pin Straight Through Telephone Extension Cable for UK Landline Phone Cord Home & Office Fax Modem Extender 6 Wire

Ancable

8.8

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rhinocables BT Telephone Extension Cable, Male Plug to Female Socket Box Lead Wired for UK Landline Phone Cord Extension, Home and Office, Fax, Modem, White (3m)

rhinocables

8.6

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ASNQ BT Telephone Extension Cable 2m – Male to Female Phone Line Extension for Home and Office – Compatible with UK BT Phone Landline

ASNQ

8.4

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15m Telephone Extension Cable Kit for UK NTE5 Line Box Telephone Socket

Masterplug

8.2

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15% Off

BT Phone Line Plug to RJ11 Crossover Telephone Cable Extension | Lead Cord for Modem FAX SKY box Virgin Hub | British UK BT Socket 4 Wire | White – 2m

Keple

8.1

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1STec 30m Genuine BT CW1308 6 Core 3 Twisted Pair Telephone Master or extension Socket FTTC Broadband Extension Wire with 2 Grommets IDC Insertion Tool 4mm Clips Printed Instructions 30 Metre White

DAVOX BT Openreach NTE5C MK2 Master Telephone socket + MK4 Faceplate + Back Box - Combination Socket for Fibre Broadband + Filtered Telephone Main Line BT431a for Phone RJ11/RJ45 Data

rhinocables BT Telephone Extension Cable, Male Plug to Female Socket Box Lead Wired for UK Landline Phone Cord Extension, Home and Office, Fax, Modem, White (10m)

1STec 2/3a Surface Mount Telephone Extension Socket + Backbox + IDC Tool Line Jack for Creating Extra Phone Point Connections (2/3a + Back Box)

rhinocables BT Telephone Extension Cable, Male Plug to Female Socket Box Lead Wired for UK Landline Phone Cord Extension, Home and Office, Fax, Modem, White (5m)

Ancable BT Telephone Extension Cable 5M, Male to Female 6-Pin Straight Through Telephone Extension Cable for UK Landline Phone Cord Home & Office Fax Modem Extender 6 Wire

rhinocables BT Telephone Extension Cable, Male Plug to Female Socket Box Lead Wired for UK Landline Phone Cord Extension, Home and Office, Fax, Modem, White (3m)

ASNQ BT Telephone Extension Cable 2m – Male to Female Phone Line Extension for Home and Office – Compatible with UK BT Phone Landline

15m Telephone Extension Cable Kit for UK NTE5 Line Box Telephone Socket

BT Phone Line Plug to RJ11 Crossover Telephone Cable Extension | Lead Cord for Modem FAX SKY box Virgin Hub | British UK BT Socket 4 Wire | White – 2m

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