Mob4Hire has comprehensive mobile user experience services; one of our popular products for in-market SIM Testing is MOBSIMTEST. With changing technologies, roaming rates, partnership agreements, and localized handset/smartphone experiences, most companies creating or configuring SIMs run expensive year-round test programs (or fail to do adequate testing!). Testing is absolutely required to ensure their SIMs allow their customers to roam internationally without an interruption of voice and data service, in addition to ensuring they are charged appropriately through the local carrier. Since the tests aren't deeply technical, Mobsters can easily do them in the country and time of your choice. SIM manufacturers and Carriers/network operators and SIM wholesalers can test in market easily and find out any issues in many countries around the world, at a fraction of the traditional cost.