Because of the bandwidth efficiency and low costs that VoIP technology can provide, businesses
are gradually beginning to migrate from traditional copper-wire telephone systems to VoIP systems
to reduce their monthly phone costs.
VoIP solutions aimed at businesses have evolved into "unified communications" services that treat all
communications—phone calls, faxes, voice mail, e-mail, Web conferences and more—as discrete units
that can all be delivered via any means and to any handset, including cellphones.
