Ericsson's LTE-Advanced helps T-Mobile continue to expand LTE Network coverage and capacity

• Network expansion utilizes Ericsson LTE equipment and services, and Ericsson LTE-Advanced enhancements for T-Mobile's Wideband LTE network
• Ericsson to help equip, install and integrate deployment of 700 MHz LTE, which improves both coverage and capacity

Ericsson's eSRVCC solution deployed to provide seamless voice over LTE (VoLTE) to circuit switched voice mobility

T-Mobile offers seamless service continuity for voice calls between LTE and Wi-Fi¹

Ericsson (NASDAQ:ERIC) has been selected to provide equipment and services to help T-Mobile continue expanding its nationwide 4G LTE network, improve in-building, highway and rural performance, and expand the availability of high-quality VoLTE services, which offer faster call setup times than a non-VoLTE call, and enable customers to access the LTE network for data services during a voice call.

The contract is an expansion of T-Mobile's groundbreaking 2012 network transformation project with Ericsson and includes RBS 6000 base station equipment, installation and  integration of 700,1900 and 1700/2100 MHz LTE-Advanced radio sites and tuning services.

Neville Ray, CTO of T-Mobile US, says: "We are constantly working to enhance and grow our network for our customers. With the help of Ericsson LTE equipment and services, not only have we rolled out the fastest nationwide LTE network in the US in record time, we're able to continue advancing voice and data performance at an unprecedented pace."

T-Mobile is the first U.S. wireless carrier to deploy enhanced Single Radio Voice Call Continuity (eSRVCC) technology, which enables a seamless handover of VoLTE calls in LTE to existing 2G or 3G networks, ensuring a customer's experience is seamless^[1]. As voice remains a critical service for LTE networks, Ericsson has delivered its Session Border Gateway (SBG) and Ericsson Media Resource System (MRS) to support voice handovers using eSRVCC.

As T-Mobile expands its lineup of devices that can support handover of voice calls between LTE and Wi-Fi, Ericsson has enabled Wi-Fi calling through its evolved Packet Data Gateway (ePDG)¹ and interoperates with T-Mobile's existing IP Multimedia System and Evolved Packet Core network infrastructure.

Additionally, Ericsson's Services organization will help T-Mobile achieve OPEX reduction through the decommissioning of MetroPCS sites and ecological repurposing or recycling of removed site material.

Angel Ruiz, Head of Ericsson North America, says: "We are pleased to provide T-Mobile with both equipment and services to support its dedication to innovation and rapid deployment plans."