Plantronics U10 QD Coiled Cable 26716-0 to Modular plug for Cisco 6941 7941 8945.(1) Plantronics U10 replacement 10-Feet, QD Coiled Cable with Quick-Disconnect Plug to RJ9 Modular Handset Plug. Vista connection Lead. P/N 26716-01. For connecting Plantronics H & HW. Series Headsets to Plantronics AP15, M10, M12, M22 and MX10 Amplifiers.