Supports Yealink SIP-T48S/T48G/T46S/T46G/T42S/T42G/T41S/T41P/T40P/T29G/T27G/T27P/VP59/T58A/T57W/T54W/T43W/T53/T48S/T46S/T42S/T41S IP Phones Compatible with Jabra Plantronics wireless headsets Compatible with Sennheiser wireless headsets (Note The sennheiser wireless headset must be running the latest firmware of the DW-Office series version 96 or later) Plug and play Answer incoming call through remote wireless headset Terminate calls using remote wireless headset key Incoming calls are signaled in the headset earpiece Built-in a RJ12 (6P6C) input port connected to IP phone RJ45 (8P8C) output port for GN/Jabra/Sennheiser headset 3 5mm output port for Plantronics headset