No Sound During Intercom/Playback

Possible Causes

• Device malfunction
• Network issues

Troubleshooting Steps

1) Adjust Mobile Audio Settings

• Check the volume settings on your mobile device. Ensure the volume is appropriately set and not muted or turned off.

2) Restart the Device

• Try restarting your surveillance equipment (e.g., NVR) and related network devices to reload audio drivers and settings.

3) Activate Manual Alarm

• Ask the customer if they can hear the alarm sound. If there is no sound, it indicates a hardware issue (microphone and speaker).

4) Contact Technical Support

• If the above steps do not resolve the issue, please contact our technical support team. Provide them with the device model and a description of the problem.

Additional Tips

• Ensure that all connections are secure and cables are in good condition.
• Verify that the firmware of your devices is up to date.

If you have any further questions or need additional assistance, feel free to reach out to our support team.