Russia\'s telecommunications operator MTS has completed a Voice over LTE (VoLTE) call on a telco cloud infrastructure, using Nokia technology, Lteworld.org reports, adding that the end-to-end test was conducted over the operator’s live LTE network with user devices.

The operator tested LTE voice services using a virtualized network supported by Nokia’s commercial portfolio and a cloud management system that controls the VoLTE applications, in MTS’s private telco cloud. The companies demonstrated the telco cloud readiness of end-to-end VoLTE.

To enable the live VoLTE tests, MTS’s LTE radio network, supplied by Nokia, was complemented with telco cloud-based voice core technology, including its IP Multimedia Subsystem (IMS), Telephony Application Server (TAS), and Home Subscriber Server (HSS). The company’s Cloud Application Manager provided automated deployment and management of all cloud applications and Nokia’s Professional Services for VoLTE helped the operator get the architecture and design of its network ready to enable multi-vendor integration and core migration.