Answer and end calls, adjust the volume or mute a call up to 350 ft. from your desk with this electronic hookswitch adapter. Simple plug-and-play solution that converts from the EHS standard used in Alcatel phones to the DHSG protocal used in all Jabra wireless office headsets. Features a voice recorder socket which allows the user to record important conversations. Improve work efficiency and ergonomics throughout the day with wireless freedom. For Use With: Jabra GN9350e;Jabra GN9125 FLEX;Jabra GN9125 DUO;Jabra GN9330e.