You can use from wall phone line to a telephone. For use with telephones, fax machines, modems, answering machines, etc. The telephone wire is good for long-distance communication for your desk phone or office phone. Extended length phone line cord is provided extra length for working in the office or . Features - Color: White - Material: Copper, PVC - Length: 20 meters/ 787.4 inch - Avoid frequent plugging and unplugging, protect the interface and . - The telephone wire is good for long-distance communication for your desk phone or office phone. - You can use it as replacement for those old or broken one. - Standard RJ11 plug for use with landline telephones, fax machines, dial-up modems, etc. - This landline cord is designed for use with both business and home telephone systems. Package list: 1 x telephone line