Understanding Wi-Fi Calling

Mobile service providers offer services where you can make voice calls or send and receive text messages from their mobile phones using a Wi-Fi network, without changing the mobile number.

Built-in software applications on smart phones provide seamless authentication of the device when on the Wi-Fi network with the mobile carrier network. When Wi-Fi calling is enabled by the mobile carrier, an IPSec tunnel is established between the phone and the mobile network through which calls are routed.

Due to increasing use of Wi-Fi for device connections, Wi-Fi Calling is seeing high demand by many service providers worldwide, which allows them to differentiate their Wi-Fi access. Though the end-user device and Mobile Packet Core communicate directly over encrypted tunnels, it is important for the Wi-Fi network to detect and prioritize this type of traffic for an optimal application experience.

This feature supports Wi-Fi calling traffic recognition and prioritization above other network traffic, with visibility for Wi-Fi calling stats for the network operator. Following are some benefits of using Wi-Fi calling in Ruckus networks:

  • QoS ensures advanced identification rules prioritize voice traffic over data traffic
  • Seamless roaming across APs
  • Voice call analytics and reporting aid in planning network resource and troubleshooting
  • Accurate classification and prioritization of voice calls over Wi-Fi on WLANs
  • Enables users to define priorities for voice, video, background and best effort on the Wi-Fi calls generated from a particular carrier phone. For example, you can prioritize your choice of carriers Wi-Fi calls over other Wi-Fi calls.
  • Easy to setup and offers the flexibility to add more than one ePDG FQDN/address for a carrier
  • Wi-Fi call prioritization when mobile phones roams form one AP to another