I have since 3-4 years now, never had any problems so far.
But now I can't receive any call from anonymous ID. Preventing my wife from calling home

From the call logs I see:
anonymous Internetworking, unspecified
Did some research, on Fongo you have a settings to let anonymous incoming call, I think it's blocked by default now.
But I can't see any settings on freephone line to let the anonymous incoming call.
Thanks in advance for any info !