...
Contact statuses
Each name in your list may show a Contact status beside itself. The contact status legenda is shown below:
 | Online | The contact is reachable. You can make a secure call to the user. |
 | Offline | The contact is not reachable, because is not under network coverage or is offline. You can try to make a secure call but the call will likely fail |
 | Warning | The contact is not reachable using a full secure call, but you can call him using one Sip Trunk configured on your server. |
 | Error | There is a comunication error between your phone and the server. The contact status is unknown, anyway you can try to make a secure call |
...