If the caller hangs up during the welcome message (before the call is even diverted to you), you will get a missed call email but no calls ring on your mobile as they’ve hung up before it even diverted to you.
If there are any calls you’d like us to take a closer look at, please let us know the exact call time and date and caller’s number. You can check your call logs in the Calls page of the Control Panel: https://cp.airlandline.co.uk/account/voip/call-history/