If you are using an Electra Elite Dterm Series E models DTU-8, DTU-8D, DTU-16, DTU-16D, DTU-32, DTU-32D, DTP-8, DTP-8D, DTP-16, DTP-16D, DTP-32, DTP-32D; Dterm Series i; Aspire , DSX Then select the Direct Connect Headset series for optimum performance.
If you have any further questions or concerns about which headset works with your phone, please call us at 1-800-747-9615. We would be pleased to work with you on finding the right model for you.