Yes, VIOP via wireless LAN is getting very popular.
Here is the info.
Voice Over WLAN (VoWLAN or Wireless VoIP)
Everyone understands the benefits of VoIP, but with the growth of WLANs, wireless VoIP via WLANs, called VoWLAN or VoWiFi, now makes a lot of sense. Combining the network cost savings of WiFi with the voice efficiency of VoIP, companies such as TeleSym offer software enabling PDAs with WiFi cards to make calls over WLANs. These calls are as clear or clearer than cell phone calls and are a lot less expensive. Spectralink is another company in the VoWLAN market providing phones operating over wireless LANs. Spectralink has identified numerous markets such as healthcare, hospitality, homeland security, etc., which need in-building systems for workers who spend a lot of their time away from their desks. The VoWLAN systems have proven more efficient and effective than two-way radios or pagers. Spectralink and Symbol Technology shipped only 30,000 VoWiFi handsets last year, but the market is expected to grow as Cisco releases VoWLAN handsets and prices drop to under $400/handset.
Info from
http://www.80211report.com/topics/emergingtech.asp
Thanks
David.K
VoIP via WLAN
