VOIP on Wireless LAN: A Comprehensive Review

VoIP requires timely servicing of the voice traffic, which is a challenging task in WLANs, even when using QoS enforcement. The use of Wireless LANs (WLANs) is more and more at present. Voice over IP (VoIP) uses data networks to transmit voice signals. Since both technologies are sufficiently established at the moment, VoIP over WLAN communication is being developed. However the inherent characteristics of each of these two technologies cause specific issues to appear. These issues must be addressed in order to ensure a successful deployment of VoIP over WLANs. This is particularly important when using WLAN technology in the context of emergency situations. A review of the current state of the art in voice communication over wireless networks is done in this paper.