How much new equipment needs to be purchased to install VoIP?
The Hosted IP Centrex service is network-based, so customers will need to purchase access to the service, or buy a bundled services offering. The product may require the customer to purchase new customer premises equipment, primarily IP phones or PC soft phones. If the customer wants to inter-work with legacy equipment, then a gateway will be required. It is important that the LAN and WAN infrastructure can support “Quality of Service” (prioritisation of Voice over Data) and Class of Service (for IP VPNs, reserving a portion of the available bandwidth for voice at any one time). Depending upon the current LAN equipment, it may be necessary to upgrade existing LAN infrastructure.
