Table of Contents
Foreword.............................................................................................................................................................. I
Important Safeguard and Warnings................................................................................................................ III
1 Product Overview............................................................................................................................................ 1
1.1 Front Panel............................................................................................................................................. 1
1.1.1 VTH2421F Series..........................................................................................................................1
1.1.2 VTH2611L/2612L Series.............................................................................................................. 2
1.1.3 VTH2621G/VTH2622G Series......................................................................................................3
1.1.4 VTH2624G Series......................................................................................................................... 4
1.1.5 VTH5221D Series......................................................................................................................... 5
1.1.6 VTH5241D Series......................................................................................................................... 6
1.1.7 VTH5421E Series..........................................................................................................................7
1.1.8 VTH5421H/VTH5422H Series..................................................................................................... 8
1.1.9 VTH5441G Series......................................................................................................................... 9
1.1.10 VTH8621K/VTH8622K/VTH8641K/VTH8642K Series........................................................... 10
1.2 Rear Panel.............................................................................................................................................10
1.2.1 VTH2421F Series........................................................................................................................11
1.2.2 VTH2611L/2612L Series............................................................................................................12
1.2.3 VTH2621G Series....................................................................................................................... 13
1.2.4 VTH2622G Series....................................................................................................................... 14
1.2.5 VTH2624G Series....................................................................................................................... 15
1.2.6 VTH5221D Series....................................................................................................................... 17
1.2.7 VTH5241D Series....................................................................................................................... 18
1.2.8 VTH5421E Series........................................................................................................................19
1.2.9 VTH5421H/VTH5422H Series................................................................................................... 20
1.2.10 VTH5441G Series.....................................................................................................................22
1.2.11 VTH8621K/VTH8622K Series..................................................................................................23
1.2.12 VTH8641K/VTH8642K Series..................................................................................................24
1.3 Alarm Port............................................................................................................................................ 25
1.4 Function................................................................................................................................................25
2 VTH Initialization........................................................................................................................................... 27
2.1 Initialization through the Device....................................................................................................... 27
2.2 Initialization through the CongTool................................................................................................ 33
3 VTH Screen Operation...................................................................................................................................34
3.1 Home Screen........................................................................................................................................ 34
3.2 Editing Home Screen........................................................................................................................... 35
3.3 Call........................................................................................................................................................ 37
3.3.1 Call Log.......................................................................................................................................37
IV