VoIP Cost Savings
Infrastructure (Toll Bypass) is a relatively small part of the impact
Other impact centers around the premises equipment
The two areas above may or may not be linked
Difficult to demonstrate hard saving on IP PBX and phone equipment alone
Source: Cisco Systems: For more information seehttp://www.cisco.com/warp/public/cc/so/neso/vvda/iptl/msipt_bc.pdf