SHONCO 4 Pack 6Ft Modular Coiled Telephone Handset Cord (Black) Ideal replacement for your telephone's handset cord. It is good to long-distance communication for your desk phone or office phone .Extended length coiled cord is provided Extra Length for working in the office or at home. Advantage: Coiled Length 6 feet maximum to 1.1 feet uncoiled,convenient. Universally compatible coiled handset cord with all telephones manufacturers including AT&T, Cisco, NEC, Rolm, ITT, & Tie.You can use them as replacements for those and Avaya 5420 and 5610SW IP phones. For use between handset and telephone, not from telephone to wall plug.Applies to Family Fixed Telephone ,And the item model is RJ11 Plug 4P4C. Note : Not applies to VOIP phone , not fit for RJ45 Modular Plug.