By 2020, estimates suggest that VoLTE services will account for nearly $120 Billion in annual service revenue, as mobile operators remain committed to VoLTE as the long term solution to secure a fully native IP based telephony experience. Nearly all VoLTE operators are committed to migrate existing mobile voice subscribers to LTE in order to re-farm their 2G and 3G spectrum.
Estimates suggest that VoLTE capable smartphone shipments will grow at a CAGR of 33% between 2015 and 2020, eventually accounting for over 950 Million unit shipments by the end of 2020.As part of the wider NFV (Network Functions Virtualization) initiative, many vendors are integrating their virtualized VoLTE offerings with cloud platforms.
First deployed by South Korean operators in 2012, VoLTE is beginning to gain momentum globally. As of Q3 2015, more than 20 operators have commercially launched VoLTE services and several roaming and interoperability agreements are already in place.
The report also presents forecasts for VoLTE smartphone shipments, subscriptions, service revenue and infrastructure investments from 2015 until 2030.