JPL EHS-5 EHS adapter

RJ-45 (8 P8 C) to 5-Pin Plug.

RJ-9 (4 P4 C) to 2.5mm Plug (3 poles)Electronically connects your DECT headset base to your telephone Enables remote operation. answer/end calls. for wireless headset use with various phones. thus eliminating the need for a mechanical handset lifter