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Ericsson Wins Japanese VoLTE Deployment Contract

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Ericsson says that it has been selected by Japan's SoftBank Mobile to provide and integrate its end to end network solution, Mobile Telephony Evolution with VoLTE.

With VoLTE as a basis, consumers will be able to enjoy telecom-grade HD voice and video calling alongside other telephony services, while using simultaneous LTE data services on LTE smartphones.

Junichi Miyakawa, Executive Vice President, Director and CTO, SoftBank Mobile, said: "With the rapid network evolution to LTE, SoftBank Mobile decided to introduce VoLTE as the next generation communication technology for voice and video calling over LTE. We hope to be able to deliver quality communication in a fast and cost-efficient manner by utilizing Ericsson's VoLTE solution."

Ericsson is upgrading SoftBank Mobile's existing mobile core network (Ericsson Mobile Softswitch Solution and Evolved Packet Core) with a complete IMS core, which includes the Multimedia Telephony Application Server (MTAS). SoftBank Mobile's best-in-class Ericsson-based LTE network is also being upgraded with new VoLTE software.

Until nationwide LTE coverage is deployed, seamless handover of ongoing voice calls from LTE to WCDMA is needed to ensure uninterrupted voice services as the user moves out of LTE coverage. Ericsson will also deploy this end-to-end network handover functionality, SRVCC (Single Radio Voice Call Continuity).

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Tags: softbank  ericsson  volte  wcdma  Japan