The telephone and networked personal computer (PC) have become
indispensable tools in today’s fast-paced business environment.
Together, these two information appliances allow firms to stay
connected with their customers and suppliers as well as gather
and share information internally to improve customer service,
productivity and profitability. Traditionally, these two systems
have been installed separately and worked independently of one
another even though the need to use both devices simultaneously
to get the job done has become increasingly common.  The
advantages of combining voice and data on the same network
infrastructure coupled with advances in network technology is
making integrated voice and data systems feasible for even the
smallest firm. The convergence of voice and data systems is
happening and the electrical contracting firm needs to be aware
of this movement and be prepared to help its customers take
advantage of it as it occurs.  What is VoIP?  Voice over
Internet Protocol (VoIP) works just