Wise to travel with a matrix sim card --- Hi, I was going to Johannesburg with my associates and we were all given a Matrix International Sim Card. What I really liked about it was the idea of having ur own number even before I got there. Since we were on a project there, it was really important for us to have good network since we were traveling offsites and good data as well. Well with Matrix everything was taken care of. I guess I just had to call their customer service centre once asking them to extend my duration since I was staying back for another month. Good voice quality and good internet speed was all that mattered and al lthat was duly taken care of. Thank You team matrix for such wonderful services. I will be wiser to use their sims on vacations as well.