Jabra Link 14201-16 Hook Switch Solution for Cisco Unified IP Phones Hook Switch Solution for CISCO Unified IP Phones Hear ring tone in headset Answer and end calls and Adjust the volume Mute the microphone Jabra LINK 14201-16 enables remote Hook Switch Control with Jabra GN9100 and GN9300 wireless headsets and Cisco Unified IP phones 7942G, 7945G, 7962G, 7965G, 7975G and newer releases