RJ45 Ethernet cable connector F-to-F type and RJ45 to RJ11 Adapter : Amazon.in: Computers & Accessories
RJ45 Ethernet Adapter - Crossover - YouTube
Amazon.com: Xsusmdom [2-Pack] Phone Jack to Ethernet Adapter, Ethernet to Phone Line Adapter RJ45 Female to RJ11 Male Converter Adapter Cable for Landline Telephone Service : Electronics