Mobile communication technology is evolving. Voice over LTE (VoLTE) deployment is quickly ramping up, with improvements in network efficiency and spectrum reuse as the primary drivers. There are currently sixty-three VoLTE commercial networks in operation, according to the latest market study by IHS . This is a net addition of 23 VoLTE networks to the existing 40 that were online at the end of December 2015. In each of the currently operational 63 VoLTE networks, existing subscribers become de facto VoLTE users when they upgrade their devices to LTE-capable ones. As an example, the Verizon Advanced Calling service is a device-driven offering. Users do not sign up for Advanced Calling, but if they buy a device that supports VoLTE, then they are on the Verizon VoLTE network by default. How VoLTE Services are Being Deployed For the majority of those VoLTE networks, the service is marketed as a device -- such as a smartphone -- feature rather than something to which a user subscrib...
TMT Market Research and Analysis