KT Corporation-Company profile, Business Overview, Financial Performance, Operating Segments, Strategic Moves, and Competitive Intelligence Report

The decline in revenue of voice calls and SMS necessitated the adoption of a standardized and viable scheme for the provision of faster and uninterrupted voice and SMS services. As the mobile network operators continue with the full-fledged implementation of 4G long-term evolution (LTE) network, the development of voice over LTE (VoLTE) is providing a platform of choice for voice call delivery by network operators. The scheme of VoLTE was devised owing to the need of a standardized system for voice or data traffic transfer over LTE. The 4G LTE network is the mainstream foundation for the emergence of VoLTE. 4G LTE provides around 20 times faster speed than 3G broadband technology. Moreover, it reduces battery drain rate more efficiently than 3G technology. Despite the deployment of 4G LTE network for data, many service providers still prefer 3G CDMA and GSM platforms for voice calls. The Voice over Long Term Evolution (VoLTE) market is likely to generate revenue of $34.8 billion by 2022, growing at a CAGR of 50.1% from 2016 to 2022.VoLTE is a long-term solution for voice calls as it is designed for replacement of conventional mobile voice platforms by easy integration of voice over Internet protocol (VoIP) services, including landline networks. Technologies such as FDD and TDD would open new avenues for the VoLTE sector. Besides this devices including smart phones, dongles and routers would create growth opportunities.