Telephone Training Adapter Y Splitter for Headset or Handset for Nortel Meridican, Norstar, Avaya, Ashtra, Mitel, Polycom, Ge and Other IP Phone
Very easy setup Y training adapter splitter that you can plug into either the telephone handset port or headset port and the adapter splitter will give you two more ports to headset or handset corded plug in. Now both users can simultaneous listening / talking into one conversion via this adapter.