Main Features
1. Receiving volume control
2. Transmission volume control
3. Tone controller to quality low and high sound
4. Mute switch for temporary call suspension
5. Last number redial
6. Flash
7. Repeat dial
8. Simultaneous call selection
9. Extension jack to the other phone and modem
10. Recording jack for external recorder
11. LED light in use
12. Mute switch (LED light) for agent or supervisor
13. Two headset jacks for agent and supervisor
14. Computer keyboard style buttons