Voice over Wi-Fi

Mitel's core network infrastructure used to deliver WiFi Calling and Messaging is the same as used to deliver VoLTE and advanced messaging. 

Further, the Mitel Telephony Application Server delivers all of the call features identically whether the subscriber is on WiFi or on cellular. Operators can decide to initially deploy either VoLTE or WiFi Calling. VoLTE deployments can have dependencies on the device and infrastructure ecosystems. Deploying Mitel's WiFi Calling solution ahead of VoLTE gives operators the opportunity to bring new IP services to market and monetize their IMS investment sooner.