Can't set up conditional call forwarding on Galaxy S7 Edge
I'm trying to set up conditional call forwarding on my Samsung Galaxy S7 Edge, so I can use the YouMail app for my voicemail. I need to set it up only for "forward when busy", "forward when unanswered", and "forward when unreachable". Each time I try to set it up for any of these, I get the following error message: "Failed to read data Unexpected response from network" I know that the number I am trying to forward to is a valid number, because I dialed it and got the correct voicemail response. In addition, I can make call forwarding work when I try "Always forward". But I need it to forward only when I am unable to answer it. YouMail says that it is compatible with Android phones using AT&T. Is that not true?