Struggled to find real business case than below are top reasons to choose VoLTE HD Voice The most noticeable benefit consumers will experience with VoLTE is improved voice quality. Traditional voice networks transmit voice calls using an 8kbps codec.VoLTE calls using 23.85 kbps and 12.65 kbps codec. Extended battery life : A report released earlier this month from Signals Research Group suggests that VoLTE services offer much-improved battery life compared with using an over-the-top Voice over IP service such as Skype. Read White Paper on LTE telephony and Battery Life Faster call setup : Connecting calls using VoLTE will be much faster than it is today using the older circuit-switched technology on a 2G wireless network. How much faster? T-Mobile CTO Neville Ray has said it can be up to twice as fast as non-VoLTE call setups. The rise of VoWiFi and ViWiFi Apple adds support for VoWiFi and VoLTE to iOS 8 - September 2014 Provides near 100% voice coverage for LTE subscribers Provides a secure means of connecting to mobile networks Reduces radio bandwidth Solve / Stop Gap Solution to Roaming. Rich Communications Services VoLTE also will enable wireless operators to deliver a new set of standards-based services referred to as Rich Communications Services, or RCS. These services include things like video calling, file transferring, real time language translation, video voicemail and instant messaging. True device interoperability Once carriers make VoLTE services interoperable among different carrier networks, there won't be any technology barriers among most of the world's wireless operators. Please do comment your opinion.