This cable has RJ9/10/22 connectors on both end (known as 4P4C). Pin 1 - Pin 1. Pin 2 - Pin 2. Pin 3 - Pin 3. Pin 4 - Pin 4. Pin 1 - Pin 4. Two options with various cable length to choose from Pin 2 - Pin 3.
RJ9 RJ10 RJ22 4P4C Coiled Handset Telephone Cable Male to Male 2m
2m Telephone Handset Cable Phone Coiled RJ10 Plug to RJ10 Plug Black 4P4c Lead
RJ9 RJ11 4P4C Phone Line With Spring Designing Stretchable Durability Cord
5M METRE 4P4C RJ9 RJ10 RJ22 MALE TO MALE TELEPHONE HANDSET CROSS-OVER CABLE
4P4C RJ Crimp Plug Connector - Pack of 10 - Small Telephone 4 pin RJ9/RJ10/RJ22
4P4C RJ Crimp Plug Connector - Pack of 50 - Small Telephone 4 pin RJ9/RJ10/RJ22
