ESCORT CLOUD is a surveillance tool. It has the following functions: 1. Monitor. 2. Switching channels. 3. Screenshot. 4. PTZ. 5. Multi-point Screen. 6. Full Screen. 7-Two way audio. 8-Auto search NVR/HVR/AHD. 9-Playback, zoom out/in. 10-Free DDNS: escorthvr/escortnvr/escortahd. com.