* 🔌 Cable installation – running and testing UTP/coaxial and power cables.
* ⚙️ DVR/NVR setup – configuring recording devices and storage.
* 🌐 Network configuration – IP addresses, routers, switches, and PoE.
* 📱 Mobile/remote viewing – connecting CCTV to phones and computers.
* 🛠️ Troubleshooting – fixing cameras with no image, poor image, connection problems, etc.
* 💾 Recording & playback – checking hard drives, recording schedules, and playback.
* 🔧 Maintenance – cleaning cameras, checking connections, replacing faulty components.
* 🔐 System security – changing passwords and managing user access.
* 🔄 Software/firmware updates – keeping the CCTV system updated.
* 📝 Technical support – visiting customer sites and resolving complaints.
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