As we all know, there are four main types of telephone networks: analog (PSTN), digital trunk (30B+D), SIP, and IMS. With the development of digital technology, operators are slowly replacing traditional PSTN with IMS. UK has the plan to phase out PSTN by 2025

With the in-depth study of technology and the accumulation of project experience, New Rock OM IP-PBX can be perfectly be docked to the PSTN、30B+D、SIP, and IMS.
New Rock VoIP gateway supports access to both IPv4 and IPv6 networks.
The New Rock IPPBX and MX series of VoIP gateways can be registered on the operator’s IMS platform.
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