yes you can assign different ring tones for callers. just search inside this forum and you will find it. i saw it yesterday and was reading it.i haven't got my memoir yet but i was wondering why everything that i read in this forum is either about the camera are something else. i was more interested in the document viewer the pdf excel  thing how does it work i would love to read while i am on the road are such but much needed info about this has not been posted. since you have the phone can you give me some pointers.