Voice services

Voice Services – Mobility Report

Device availability and use of use cases

There are over 3,200 types of VoLTE enabled 4G devices, such as mobile phones, customer premises indoor equipment (CPEs), landline cordless phones, tablet PCs and smartwatches. Most of the latest IMS-enabled devices also support HD Voice + (Enhanced Voice Services, or EVS), and many also support native video calling.

All 5G smartphones use IMS for voice, and there are over 280 voice-capable 5G devices, of which 75% are phones. Other devices include indoor and outdoor CPEs, modules and tablet PCs. There are 40 VoNR compatible modules and devices.

New use cases for voice leveraging IMS include multi-device network capabilities that link multiple devices, such as phones, smartwatches, smart speakers, and cars, to the same phone number. Over 100 service provider networks support cellular smartwatches with voice services, and this trend continues to grow with new types of wearable devices with stand-alone subscriptions for new user groups such as children and adults. the elderly. Other IMS-based services include additional phone lines on the same phone, shared phone lines, anti-spam call protection, business collaboration services in combination with mobile HD voice and voice for devices IoT.

There is a special variant of 3GPP based cellular systems with IMS, which enables critical push-to-talk services for public safety organizations, utilities and local private 4G networks. It started to be widely used in North America, and now the European market is following. Once critical communications for 5G are finalized in 3GPP standards, additional use cases with low latency and high capacity broadband will be enabled.

5G-related service innovations are being explored, including combinations with augmented reality and virtual reality. A new standardized 3GPP (IMS Data Channels) feature will enable interactive calls, which combine a 4G or 5G voice call with real-time content sharing, for example, joint web browsing on smartphones, or media sharing of mobile phones. enterprise and enterprise between different devices and endpoints. It could become a consumer enhanced voice service in the future.
Source of network and device statistics: GSA and GSMA (Oct 2021).