SoftBank developing Twin Access mobile service

1 min readUpdated May 25, 2025Aug 8, 20173:13 AM

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Japan’s SoftBank is developing a new Twin Access mobile network service for enterprises using equipment from NEC.

The Twin Access service provides two simultaneous mobile network connections to maintain a state of constant, active connectivity between NEC line terminal equipment and devices employing virtualization technology.

It uses the packet copy capsuled (PCC) technology jointly developed by SoftBank and NEC to offer improved transmission quality with higher packet arrival rates than conventional single mobile line systems.

SoftBank VP for networks Takenori Kobayashi said the service is designed to be used as an alternative to fixed broadband networks.

“Because of its high quality of service, Twin Access can be used at locations where optical fiber lines are not provided, or as an alternative to metal-wired lines such as DSL or digital access,” he said.

“In addition, by utilizing the unique features of mobile networks, such as their freedom from cable installations, Twin Access makes it possible to build flexible, economical, short-term networks; such as temporary networks for use at construction sites and event venues.”

SoftBank and NEC plan to conduct field trials of the technology ahead of the full-scale commercial launch of Twin Access by October. SoftBank aims to deploy the new service in Japan as part of the access lineup for its Smart VPN service.

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What this means

SoftBank's Twin Access is a pragmatic move to monetise its mobile network assets further, particularly in challenging environments where fixed infrastructure is absent or impractical. The focus on 'Smart VPN' integration positions it as a value-added service rather than a standalone offering, using existing enterprise relationships. While its efficacy relies on widespread mobile coverage, the 'freedom from cable installations' and 'economical, short-term networks' appeal are strong selling points. This proactive approach contrasts with competitors who might be more reliant on fixed-line offerings. The risk lies in enterprise adoption rates and the actual cost-effectiveness versus satellite or other temporary solutions. We should monitor initial deployment success and subscriber numbers post-October.

Aiko Tanaka · Retail News Asia newsroom

Questions & Answers

What is the primary purpose of SoftBank's new Twin Access mobile service?

The service aims to provide a reliable mobile network connection for businesses, acting as an alternative to traditional fixed broadband networks, especially where fibre optic lines are unavailable or for temporary network needs.

How does Twin Access technology improve connection quality compared to other mobile services?

It uses two simultaneous mobile network connections, maintaining constant, active connectivity. The service employs PCC technology, jointly developed by SoftBank and NEC, to offer improved transmission quality with higher packet arrival rates.

When does SoftBank plan to launch the Twin Access service commercially?

SoftBank and NEC plan to conduct field trials of the technology, with a full-scale commercial launch of Twin Access anticipated by October. It will initially be deployed in Japan.

Which companies are collaborating on the development of the Twin Access service?

Japan’s SoftBank is developing the Twin Access mobile service using equipment and jointly developed PCC technology from NEC. Both companies are involved in the field trials.

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