I went to France at the weekend. I noticed whilst I was there that I could not make outgoing calls on my mobile (which is quite important to me because I was leading a group of young girls on a trip). Since I got back to the UK yesterday evening, I am still suffering from the same issue. Everything was fine before I turned on data roaming and left the UK last week. I've tried turning the phone off and on again.
Just for the record, my mobile phone is a Samsung A3 (2016 edition).
Same here. Made a call earlier today from my mobile but cannot now make any outgoing calls. Text and emails still OK.