Plantronics 37818-11 Electronics Hookswitch, APS-11 CS500 PL-37818-11

• Electronic hook switch cable for remote desk phone call control (answer/end)
• Eliminates the need for an HL10 Handset Lifter
• Works with a variety of desk phones (Siemens, Funwerk, Auerswald, Agfeo, Aastra, DTeWe) and may work with additional manufacturers