Overview

Imagine installing a Vo802.11 application in your corporate WLAN. How does the caller get voice mail, call forwarding, conferencing, three-way calling, last call returned, and other calling features? Is the Vo802.11 network the equivalent of a walkie-talkie? Deploying voice-only over a Vo802.11 network is not commercially viable in an industrialized economy. If a Vo802.11 network is to replace an enterprise PBX or the local PSTN, it must offer features comparable to that of the network it replaces. One often-heard objection is the perception that any alternative to the PSTN or corporate PBX cannot perform E911 or CALEA. Vo802.11 products are now on the market that perform these functions. In addition, the means are available for wireless VoIP networks to provide all the features of the network it replaces. Enterprise users deploying wireless VoIP must also take into consideration which features their staff will need and how they will be delivered. Will the firm continue to use its existing TDM PBX or will it upgrade to an IP-PBX or outsource to an IP Centrex for switching and features?