LG has demonstrated world’s first voice-to-video call handover over a LTE network at Mobile World Congress (MWC) 2012. This is based on LG’s proprietary technology that enables users to switch back and forth between high quality voice and high resolution video call modes during an ongoing telephone conversation.
They have also demonstrated video sharing service, which enables real-time sharing of videos over a LTE network, as they are being recorded.
This uses IP Multimedia Subsystem (IMS) Profile for Conversational Video Service over LTE. They demoed Voice over LTE (VoLTE) and video calls. Prior to the introduction of LTE technology last year at MWC.
LG plans to launch LTE smartphones with this call switching technology later this year.