| Audio Settings: C2Call GmbH Certificate: Call quality issues: |
If you are experiencing constant echo problems:
* The audio device being used by the person you are calling (most likely speakers) creates an echo. To improve the call quality at least one person should use a headset instead of microphone/speakers.
* If a headset cannot be used, try turning down your your speaker and microphone volume (this can be accessed in your system's audio settings).
Note: The echo suppression works better in environments with few background noises.
One user in a call cannot hear the other:
This is usually caused by incorrect audio device settings.
[Windows] Go into “Control Panel > Sounds and Audio Devices” and check the following:
* Check whether your microphone is switched to mute. Some microphones have a switch that allows you to mute outbound audio.
* The microphone can be connected through the Microphone/Line-in port of your audio device. Make sure that you're using the microphone port (usually identified as the pink-colored audio input on your PC, or by a small microphone icon). Furthermore, please check your Recording Control settings and make sure that the the box under Microphone is checked.
* Make sure that the volume level of your speaker is up and the speakers are not muted.
For Audio settings please see our Audio guidelines.
- Personal firewall software:
* Normally, you don't need to change your firewall settings. However, some Windows personal firewall systems block “UDP” data by default. You can temporarily switch off your personal firewall to check this.