OK, that is quite useful. Still, I am not sure what I'm looking for. What would I expect to see if a missed call never made it to my Obi?
Also, is there a log file that shows when my Obi loses connection with Anveo? Where would I look for that?
1. All incoming calls will appear in Call History. If a call you know was made but did not ring your phone is not listed in Call History then it didn't reach your Obi. If you have not already done so have a look at your Call History to see that it shows date, start time, end time, incoming route, CID and what the Obi did with the call.
2. There is no such log file "ready made" on the Obi. The Obi is able to send log messages to an syslog server elsewhere; typically running on a computer on your LAN. System Management, Device Admin, Syslog is where you set the parameters for that external server. However, ploughing through the log to find when connection to Anveo is lost may be non-trivial.