Call Center Caller Id Telephone Dial Pad With Monaural Headset (Dt-40)

Our firm is producing and exporting of Call Center Caller ID Telephone Dial Pad With Monaural Headset (DT-40) to our consumer with the following details:
Equipped with noise canceling headset FOR630
16 bit caller number display(DTMF & FSK signal, auto detecting)
24 groups 16 bit incoming number search
7 groups 16 bit outgoing number search
1 group 32 bit automatic IP dial-up
32 bit number pre-dialing and error correction
1 bit PABX code
5 bit calling region code filtering
Ringing and in use indicator
With waiting music, microphone can be mute and music is played
Flash time 100/120/180/300/600/1000ms optional
Ringing tone volume adjustable, can be mute and switched to headphone
Intelligent communication mute with lamp indication
Tone/Pulse dialing mode setting
Automatic answering switch
With RJ11 headset socket
Headset stand
Communication can be switched among headset, handset and handsfree speaker, with lamp indication
7 degrees volume adjustment for headset, handset and handsfree speaker
Auto/Manual answering optional
Intelligent backlight indication(external power source required)
Hands-free speaker volume amplification(external power source required)
16 bit digital widescreen LCD display, brightness adjustable
DC9V power port is available