I have a Lumia 650 and I can't make calls abroad. I have set all settings correctly on my account online. I have called virgin mobile on numerous occasions and they have checked my account and confirmed it is all set up correctly to make international calls. Yet wherever I am in the world I can't make a call. I can send a txt. My phone gets a txt saying welcome to France or the US or wherever. I get a good signal. But am met with a message saying "the service you are attempting to use has been restricted or is unavailable."
every time I get back to the uk I call them. They say it's fixed and then I go abroad again and no calls can be made.
i am thinking of leaving virgin over this as they won't sort it.
I did manage to fix it, by accident. I tried my wife's sim in my phone (which was working on her phone anyway), it worked. I tried my sim in her phone and that worked too. When I put my sim back in my phone I was able to make international calls for the first time in 18 months.