Voip cost savings, lower bandwidth costs, reduced personnel, less-expensive moves.
According to a latest hour study, VoIP will know a fast rise from 4 percent (the implementation rate that VoIP has today), to 44 percent, by 2008! And these numbers reflect only corporate telephone lines. This great transition will be possible especially due to the reduced cost of equipment
But it all comes down to money: generally,
voice-over-IP (VoIP) cost savings fall into three categories: less-expensive moves, (adding and changing - MAC); lower bandwidth costs; and reduced personnel.
A few companies have justified VoIP rollouts entirely on the basis of MAC savings. Others did not embrace this idea because MACs are a part of maintenance contract for an already existing PBX, or because they have employees that do that specific function (they handle MACs of the network).