This started a few months ago when I dial my sister. We are both with virgin mobile and I would hear "you have dialled an incorrect number" it's not incorrect we've had the same numbers for over 15 years.
My sister has an iPhone, she always has this make. My last phone was an iPhone I'm now using a Samsung galaxy. We've both had new sim's yet this keeps happening but only with her number.
I can send a text, she can ring me but if I try to reply I keep getting the same thing.
Any suggestions to fix this would be appreciated