• Upgrade Door station and Indoor monitor the latest firmware and try again.
• Check whether there's another NVR VLC monitoring door station.
The temperature device too high.
• Check the volume settings both the Indoor monitor and Door station not mute and try increasing the
volume.
• Make sure the indoor monitor Device no. are the same Door station and Indoor monitor.
The Indoor Monitor cannot monitor the Door Station.
Multimedia files cannot played normally.
• Make sure the Building no.
.
Indoor monitor can't receive the call but can make the outgoing call.
No audio when Door station making the call Indoor monitor.
• Click 'Search' icon the Indoor monitor's user interface (Settings/Setup Doors), find the Door station and
save.
Door station can’t make the call indoor monitor.
• Make sure the Building no.
• Long-term use leads high temperature. and Unit no.
• Check whether Indoor monitor enabled DND (Do Not Disturb) feature..
• Make sure the Door station and Indoor monitor are the same network segment.
• Check whether LED light isn’t powered on. Main indoor monitor).
• Make sure another user isn’t using the system, else you can use once he/she finishes the operation. normal and will not affect the device’s use life and performance.0 (04/2026) Page 31
11 TROUBLESHOOTING
The device cannot start power off automatically. yes, disable and make the video call
again. are the same Door station and Indoor monitor.
• Use another Door station Indoor monitor make the call check whether there's audio. and Unit no.User manual VES-B202/B205
V 1.
• Check whether both 12VDC power adaptor and PoE switch can’t power on?
• Change another 12VDC power adaptor PoE switch try again.
• Upgrade Door station and Indoor monitor the latest firmware.
No video when Door station making the call Indoor monitor
• Reduce the resolution Door station check again.
• Try re-plug the FFC cable the camera Door station.
• Check whether VLC can monitor the Door station.
• Check whether the system supports the file format. Please refer the multimedia setting for details.
• Make sure the Door station and Indoor monitor are the same network segment