What was meant by switches is Phone Switch. Cards can now be inserted into the switch pluged into an ethernet port and Voice then carried over IP. The data router just send the traffic. This eliminates the need for a VIC card. Sorry for the confusion. As for Krishna, cost for deployment. $6,000 per card for the PBX. As far as programming ahve the vendor include it with the install. This(VoIP) is still so new the vendors are excited about deploying the product. Fixed cost to me are monthly charges that remain somewhat constant. Software upgrades should be included in the Return on investment and should actually be included in the initial VoIP deployment.