NextGen have profound knowledge of Telecommunications based on years of experience with carrier-grade solutions, security, voice logger, and enterprise to Carriers, MVNO, and Service Providers. NextGen is the first creator and supplier of Session Initiation Protocol/ VoIP technology in Japanese market.

Based on SIP/VoIP expertise, we offer wide range of Enterprise products such as Multi-Carrier SIP Gateway, IP-PBX, Session Border Controller, and Cloud services.

We built diagnostic and monitoring tool which helps VoIP, M2M, and IMS systems detect and protect from threats and attacks.

Our Voice logger supports analog digital, VoIP, landline, mobile, and radio and covers small to large scale office.


Nextgen provides high performance products that are carrier grade reliable and handles multiple concurrent calls as well as wire speed and 100% pure software-based products, NFV ready.
NextGen products with the use of Intel DPDK are below.


NX-C1000 is a Class 5 and subscriber accommodating soft switch which is used in telecommunication carrier's VoIP core system. It supports standard VoIP communication and IP Centrex services for consumers and be used as cloud PBX.

Accommodates up to 1M users. All redundant nodes with carrier grade scale.

Offers equipment constituting VoIP network such as Class4 media gateway and SBC. Peripheral system also available which consists of VoIP system monitoring, pay-as-you-go, and self-provisioning