the use of a wireless broadband network for the purpose of vocal conversation. In other words, it's just like VOIP but over a Wi-Fi network. In most cases, the Wi-Fi network and voice components supporting the voice system are privately owned. VoWLAN can be conducted over any Internet accessible device, including a laptop, PDA or the new VoWLAN units which look and function like cellphones. VoWLAN's chief advantages to consumers are cheaper local and international calls, free calls to other VoWLAN units and a simplified integrated billing of both phone and Internet service providers. Although VoWLAN and 3G have certain feature similarities, VoWLAN is different in the sense that it uses a wireless internet network (typically 802.11) rather than a Cellular network. Both VoWLAN and 3G are used in different ways.