376 Basic Function6.1 Call Function6.1.1 Call Management CentreThe system provides different calling ways depending on connected module. If modular VTO connects keyboard module, press on the keyboard module to call themanagement centre. If keyboard module is not connected, press call key of camera module to call themanagement centre.Configure the following parameters before calling.Select “System Config >LAN Config”.Step 1The system displays “LAN Config” interface.Select “Register to the MGT Centre”; set “MGT Centre IP Address” and “MGT PortStep 2No.”.Register the VTO at management center. To call from keyboard module, ensure that VTO has been registered atmanagement centre. To call by pressing the call key of camera module, it is necessary to enable “CallVTS or Not”.Set “Call VTS Time” and select “Call VTS or Not”.Step 3Enable to call the management centre within the set time period.Click “OK” to save the settings.Step 4