| - Headset/Handset switch for telephones without a dedicated headset socket |
| - Mute switch |
| - Recording jack allowing the user to attach recording media such as the ADDCOM Digital Recorder to record conversations |
| - 3 training modes: 1. Mute trainer only 2. Mute agent only 3. Mute both trainer and agent |
| - Simplified two position polarity switch,automatically detecting positive or negative polarity, allowing your headset to connect to many different types of telephones |
| - Microphone volume control, allowing the user to increase the microphone volume on their headset (not available on all models) |
| - Recording jack allowing the user to attach a recording device to record conversations |