Students (both undergrad and graduate) get most of the help they need with computers through their Resident Computer Consultant (RCC). These are students who live in student housing whose job it is to provide this help. Each RCC is assigned to a housing unit (some larger ones may have several RCCs).
To register your iPhone, connect to the Stanford wireless network, open a web browser, and point it to any page. The Stanford Network Self-Registration page opens. Tap Continue to Registration Choices and follow the on-screen prompts.