Known caller with withheld number unable to call me
I am unable to receive phone calls from people that I know who call from their work - a hospital and a clinic; these are important calls where the caller doesn't get any ringing tone or answer message. And I am unaware that anyone has rung. I believe it might be related to them calling from an extension within their work environment, though this is a guess. Is this settings on my panasonic phone or virgin media account?