I've got 3 phones in the house.... N70, K700i, W850. I put a 32k vodacom sim card in the W850 and i connect to the internet via GPRS/3G perfectly. I put it in the N70 or the K700i and it only sends, doesn't receive (limited connectivity). Strangest thing is that the N70 and K700i both work with their current sim cards which are both also 32k vodacom sim cards.