The Cisco Spare Telephone Handset Cord is a smart and cost-efficient way to replace a lost or broken Cisco telephone cord without needing to replace the entire IP phone. Compatible with Cisco 7800, 8800, and DX600 Series IP Phones, this phone cord connects to the handset and base unit with a standard RJ-9 port and has a coiled design with a custom end for concealed cable routing beneath the phone.