The service often seen at different sites works in such a way that you
need to enter your telephone number in a special window and after some seconds
you and the company representative will receive a call, which will allow you
communicating.
Is a call center, in which the organization
representatives are geographically located in different areas, otherwise, they
are not at their work stations in the building where the organization office
is. The virtual workers of the call center could be placed in smaller centers,
but most often they are working from home.