Accoridng to our WDS (Devices) service, voice-over-LTE offers operators a more efficientway to deliver voice calls to mobile customers while promising users rich data and better-quality voice connections through services like HD Voice.

VoLTE mobile phone sales are on the cusp of taking off globally in 2015, due to Apple and others, after several years of limited deployments in various regions around the world.

Strategy Analytics forecasts worldwide VoLTE handset sales will grow by +113% annually in 2015, led by the Asia Pacific and North American markets. More analysis can be downloaded by clients here.