Features:
>First Dialer for binaural headset in mainland China (RJ09 interface)
>Indicator light: mute, receiving calls and calling
>High cost performance
 
Applications:
1. Tripartite meeting function
2. Monitor management function
3. Staff training function 
4. Manual answering calls 
5. Automatic answering calls 
6. T (dual audio) dials 
7. P (pulse) dials 
8. 100ms-300ms-600ms diverting calls 
9. Redial 
10. Mute telephone transmitter (with light) 
11. Phone ringing (sound volume, internal and external) (with light flashing indicator) 
12. Volume adjustment of microphone and earphone