Reviewed on Friday June 5, 2015 by M.coyles, British columbia
I have had my 620 since november1 2014. After 3 months it had to go for repairs which took over two weeks. The sound,ring tone,although set at max was barely audible and I was missing calls.it has failed again and I am missing calls again. I really like the phone but am very disappointed with this particular problem.it has to go for repairs once more.what is causing the failure?