Replacement-4P4C-RJ9-RJ22-Curly-coil,Spring-Spiral Heavy-Duty foot gold-plated,telephone-receiver universal wire cable-landline,rotary-touch-tone home analog house-residential,Business-office-soho-landline,one,corded,Radio-Shack unisonic durabrand lennox golden-eagle,Cisco-7811 7821 7841 7845 8821 8841-8845,6901-6911 6921 6941-6945