Recently one of my office mobiles (ERICSSON R600) has started the strange behaviour. From time to time it just turns off itself, the battery cannot last more that few hours. It's obvious that I have to change the phone, but the problem is that today I tried to find a certain number and noticed that my phone memory is empty (Sim card memory 100 numbers + phone memory 200). In total I had 189 numbers on this phone, 100 on my sim card and those 89 that were on my phone memory are currently lost. Now when I try to save a new number it is not the problem so it looks like memory is functioning so I dont know what caused the lost of those 89 numbers. IS THERE ANY POSSIBILITY TO RECOVER THOSE NUMBERS THAT WERE IN PHONE MEMORY?