Tech support job is like a calling job?

no it's not, both have different working area,
To act as a single point of contact for all IT Customers.
·         To maximize service availability.
·         To restore service whenever possible.
·         To provide desk-side services, desktop management and device lifecycle management and provide business systems support.
·         Maintain Hosted client services for extended application and client access.
·         Create Portable user profiles to enable agility.
·         Stateless device deployment to ease support and replacement.
·         Creation of a detailed products catalogue containing all possible devices in a company to add/remove/update products at any time
·         Optimization of existing desktops and provide the foundation services for emerging desktop virtualization technologies.
·         Creation of content for Self-Service Portal Solutions and L0 support