Manual Dahua Modular VTO v 3.1 (page 50 of 104) (English)

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Figure 6-4

Make a group call from keyboard module

Ensure that keyboard module has been connected and added to façade layout. Otherwise, this

call doesn’t exist.

On keyboard module, press VTH room no. and press to call the VTH.

6.1.3 Group Call

Group call applies to the scene where one VTO corresponds to multiple VTHs.

Please confirm that the following basic settings are correct, and confirm group call conditions

for every connected module.

 Please ensure that single call between VTO and VTH works normally. If single call fails,

please check the configuration by reference to “5.1 Debugging Settings”.

 Room no. of extension VTH ends up with “-1, -2…” based on room no. of master VTH. For

example, if master VTH is 9901, the extension VTH will be 9901-1, 9901-2…

 At WEB interface of VTO, select “System Config > LAN Config”, set “Max Extension Index”

and tick “Group Call” to enable group call function. There is one master VTH at most and

five extension VTHs at most, as shown in Figure 6-5.

Figure 6-5

Make a group call from camera module

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Dahua Modular VTO v 3.1 Manual

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