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Extricom: Voice over Wireless LAN (VoWLAN)

System Design and Performance Considerations

Voice over IP (VoIP) is maturing and achieving increasing corporate acceptance as device costs decrease and VoIP phones improve. Employing VoIP over wireless LAN (VoWLAN), freeing the telephone from the cord, is an obvious next step. It is expected that the enterprise VoWLAN market will initially be driven by specific corporate needs, such as warehouse and retail sales tracking and control, ubiquitous mobile telephony in medical campuses and hospitals, and mobile security applications.

The convergence of voice and data networks enables new applications and cost reductions. VoWLAN phones are already being offered to enterprises by leading vendors, while integration ofWLAN and cellular technology (dual mode handsets) is also being pursued by numerous vendors and carriers in several countries.

Unfortunately, there are still a number of factors that inhibit widespread adoption of VoWLAN in the enterprise. Traditional WLAN infrastructure approaches manifest the following inhibitors: Excessive latency and jitter, leading to degraded voice quality; Poor coverage; Roaming latency between Access Points (APs), leading to interrupted voice service; Security issues; Retransmissions and dropped packets; Low capacity, reduced number of calls; Quality of service, required for voice and data convergence; Power consumption requirements

Extricom introduces the patented Interference-Free architecture, a completely new wireless LAN architecture that overcomes the challenges that inhibit VoWLAN adoption in the enterprise. Extricom's technology eliminates the coverage and capacity limitations of traditional WLAN architectures, as well as the need for cell planning and site surveys, the most expensive aspect of owning a WLAN. This solution provides seamless, secure mobility and high-performance traits, all at a very low cost of ownership. The Extricom WLAN is ideally suited for real-time applications such as VoIP, thanks to the architecture's zero-latency and jitter, as well as its ability to support very low transmission power.

To read the full white paper, please click Here.