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Call statusTo establish a call completes three phases shown by three icons:Call status icons![call_progress_connecting.png](/docs/plugins/servlet/confluence/placeholder/unknown-attachment?locale=en_GB&version=2)
| Red lightStarting : starting the connection. Connection not yet established. This step may take several seconds |
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| Yellow light | Key exchange | Connection established but encryption keys are being exchanged. | Image Removed
| Green light | Green light: Secure call established Connection established and secure. You can now speak securely
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Call quality level
Some factors of the mobile network (i.e.: GPRS use, poor signal, frequent radio cell changes, roaming) could decrease the audio quality of the call, increasing voice delay. Three variants of the call status icon shows the current call quality level.
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