Amazon.com: Uvital RJ11 Duplex Wall Jack Adapter Dual Phone Line Splitter Wall Jack Plug 1 to 2 Modular Converter Adapter for Office Home DSL Fax Model Cordless Phone System, White(2 Packs) : Electronics
Amazon.com: 2-Way Wall Modular 6 Wire Phone Adapter RJ11 RJ12 White Dual T Splitter Line RJ-11 RJ-12 Twin 2 Outlet Telephone Plug Jack Duplex Converter Connection Snap-in : Electronics
Amazon.com: GFORTUN Beige 6P4C 4 Pin RJ11 Dual Female to RJ11 4 Pin Male Socket Plug Cord 2-Way Cable Splitter Adapter for Landline Telephone (2 Pack) : Electronics
Amazon.com: Uvital 100 Pack RJ11 6P4C Plug, Telephone Handset Flat Cord Cable Modular Plug Connector Phone Jack Adapter Crimp End Crimper Clear Plastic Transparent Color : Electronics
Amazon.com: NECABLES 4 Prong Phone Jack Adapter Telephone Adapter Plug 4 Prong Male to RJ11 6P2C Female Black : Electronics
Amazon.com: RJ11 Jack 2 Way Outlet Telephone Modular Line Splitter Plug Adapter 6P4C, 2-Way RJ11 US Telephone Plug to RJ11 Socket Adapter and Splitter for Landline Telephone : Electronics
RJ11 to UK BT Plug CROSSOVER Adaptor Connect ADSL Cable to BT Phone Socket Plug | eBay
BT Telephone Socket Adapter UK to US | British Telecom Female Jacks to RJ11 4 Wire Male Plug | Cable Adapter Landline Port Converter Extender FAX Modem Corded Cordless Phone SKY
Antique telephone 4 prong jack to modular adapter so you can use your vintage phone that has a 4 prong jack | Old Phone Shop
Amazon.com: URBEST® 2Pcs 2-Way RJ11 US Telephone Plug to RJ11 Socket Adapter and Splitter for Landline Telephone : Electronics
4C 3 Phone Jacks In 1 Telephone Jack Modular Adapter 3-Way Outlet Splitter Plug - Walmart.com
Wall Plate 2 Ports Telephone Rj11 Phone Jack Panel Faceplate Connector 86mm Standard Size Home Plug Adapter Wholesale Lots - Pc Hardware Cables & Adapters - AliExpress
RJ11 Jack 2 Way Outlet Telephone Phone Modular Line Splitter Plug Adapter NGL US | eBay
Jackson Modular Telephone Adaptor Plug | Officeworks
2 PACK RJ45 to BT RJ11 Secondary Telephone Splitter 2 Way Female to Male Adapter Converter Line Cables Telephone Plug Socket Connector Ethernet For Landline - Newegg.com
RJ11 to BT Plug Adaptor - Connect ADSL DSL Cable to BT Telephone Phone Socket 5060457589744 | eBay
Amazon.com: Power Gear 5-Jack Telephone Adaptor, White, Easily Mount to Wall or Baseboard, for Standard Phone Jacks, 76131 : Everything Else
Amazon.com : 318b Four Prong to Modern Modular Telephone Converter Adapter, Black : Telephone Cords : Office Products
Amazon.com: 2-Way RJ11 Telephone Plug to RJ11 Socket Adapter and Splitter for Landline Telephone : Electronics