During a secure call the following information is displayed by PrivateGSM:
- key exchange status at the beginning of the call;
- connection quality.
Call status
To establish a call PrivateGSM completes three phases shown by three icons:
Call status icons
| Red light | Starting the connection | Connection not yet established. This step may take several seconds |
| Yellow light ZRTP-edition ONLY | Key exchange | Connection established but encryption keys are being exchanged. |
| Green light | Secure call established | Connection established and secure. You can now speak securely |
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.
Call quality level icons
| Poor connection quality |
| Average connection quality |
| Good connection quality |
Note
If the connection quality remains poor we suggest you to seek for better network coverage or connect to broadband Wi-Fi access point.