This is the Zoomswtich Wireless Headset Training Adapter. This adapter allow you to hook up two (2) wireless headsets. You listen and monitor a call (for training purpose) and can take over a call by simply pressing a button on this adapter. It's compatible with all wireless headsets such as Plantronics CS540, Plantronics CS510, Plantronics CS520, Plantronics CS530 systems
It's also compatible with others headsets such as Plantronics M22, S12, S11, T10, T20
Select default setting 2 when plugging the adapter between an amplifier and telephone handset. (i.e. Plantronics CS540, CS510, CS520, CS530 and Plantronics Polaris headsets)
Select setting 1 when plugging the adapter between a headset and an amplifier (only one amplifer). i.e.Plantronics M22
1) Plug the first headset into jack A, Plug the 2nd one into jack B. Either headset can be muted with the mute button.
Also see Zoomswitch training adapter setup guide
*IMPORTANT NOTE: Due to this manufacturer's policy - This product is Non-Returnable/Non Refundable. Any defective product will be replaced by the manufacturer.