c6a915b2_10_Free_Softphone_VoIP_Clients__Explanation
[Login Message] "Failed to Load Settings from the Server." [Solution] Verify the connection to the internet. Verify username and password are correct. Check Diagnostic Log to verify that SIP messaging is being received through your firewall. [Explanation] 
One or more SIP registrations failed.
Softphones | VoIP Softphone Information | 10 Free Softphone VoIP Clients
Explanation