The services provided by professionals in particular field. For example, a company may charge a certain sum of money for the certain tasks their consultant accomplished for the company who ordered the service.
Introduction
With a traditional PBX system, or private branch exchange, everything is done over live phone lines. Stations are utilized to route and reroute phone calls in order to allow a caller to reach the party they want to talk to. While this is a perfectly acceptable method of doing business, as technology grows, so do the incentives for upgrading to newer business telephone systems.