Excerpt: Overall, the Q105 performs well. Voice reception is clear. I am told voice transmission is clear s well. However, the actual features of the phone are not totally as described on the Samsung site. There is no calculator and only one alarm. This phone does not share accessories with any other Samsung phone, even the ear bud has a proprietary 2.5mm plug. PIM function exists but is cumbersome to sync with PC even with the supplied software.