Also the app doesn't fully understand the international dialling codes
I noticed this a couple of time, I have still to understand when it happen, and if happen only on one of the two sims.
What I noticed is that when happen the + sign is missing, so the contact app is nitpicker, bt is the phone itself that "eat" a part of the number.
I've heard of this same problem on some of the earlier apple iphones where it understood the international codes with 00 as opposesed to a + or vice versa. At the time i think the solution was to set up each contact with two numbers one beginning with + and the other 00.
i'm not going to do that though i think i can live with it the way it is!