Jabra 8800-00-101 Converter RJ9 4P4C-RJ6 6P4C, Cable Length 1.64 ft, Headset, Phone, Black, Connector on First End: RJ-6 Male Phone, Connector on Second End: RJ-9 Male Phone. Jabra Converter RJ9 4P4C-RJ6 6P4C (8800-00-101) This cord is used to connect a Jabra Quick Disconnect headset to phones with a modular (RJ) interface.