Now, there is nothing to struggle with on a dutch side number, you just treat it like it's a US long distance number--1 plus 721 plus the number. Just dial those exact numbers that Leseley gave you. EXCEPT that it is still an overseas call, with attending cost of $2-$3 per minute. The other number he gave must be a Skype number or something, as Dutch SXM numbers start with 721. So I would try that second number first, as that probably is not an overseas call.