WiMAX is a wireless digital communications system, also known as IEEE 802.16, intended for wireless "metropolitan area networks." WiMAX can be used for broadband wireless networking similar to the more common WiFi protocol. WiBro is the Korean version of broadband wireless networks, similar to WiMax.

WiMAX allows for more efficient bandwidth use, interference avoidance, and is intended to allow higher data rates over longer distances. These higher data rates will allow new opportunities to expand deployment of video conferencing over IP, along with other VoIP based services.
RADVISION’s protocol stacks and client solutions are especially suitable for developing WiMAX VoIP products.

• IMS for WiMAX 
  RADVISION offers a wide range of IMS developer solutions that are suitable for WiMAX/WiBro deployments
• Bundling of VoIP with WiMAX 
  WiMAX providers need to bundle VoIP with their products, especially where this is the only communication method in use.
• Multiple platforms
  Support for multiple platforms and operating systems through a single abstraction layer