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General| Brand | Dahua |
|---|---|
| Model | VTH2221A |
| Category | Intercom System |
| Language | English |
Covers essential security steps like password changes and firmware updates for system protection.
Covers initialization, network, system type, server type, SIP, and adding VTO/VTH.
Details the main interface elements and various settings like Ring, DND, Alarm, Mode, Forward, and General.
Covers project settings, network configuration, VTH/VTO settings, and default/reset options.
Explains contact management, call operations, VTO/IPC monitoring, and favorite device lists.
Guides users through downloading, installing, registering, and logging into the DSS mobile app.
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