Telecom Expense Management (TEM) defines an approach to managing all telecommunication service expenses such as voice and data with a combination of software tools and manual auditing. For larger companies, it is a more formal programme to optimise spending on telecom services.
TEM is the practice that encompasses the business processes conducted by IT and finance departments to acquire the provision of corporate telecommunications assets. It is the build-out of services, or the acquisition of third-party services, to manage the supply chain for telecommunications. TEM began due to a need to control monthly costs associated with the use of fixed phone lines.
Now TEM has evolved into a management system which also helps wireless services.