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As is commonly known, Voice over Internet Protocol (VoIP) allows audio transmission over the Internet, which removes the constraints of telephone cables, space, and distance. Audio deployment is made simpler and more flexible, diversifying audio businesses. However, the existing Internet is based on the IPv4 protocol with a limited number of IP addresses. The VoIP application inevitably contends with numerous network issues, including NAT/STUN conversion of network addresses.
The next-generation IPv6 Internet protocol has finally ended the IP address shortage. In the IPv6 network, every server/terminal has a public address to be accessed directly without translating intranet addresses by NAT or NAT traversal using technologies like STUN. Thus, VoIP applications have become simpler.
At the same time, the IPv6 application avoids other IPv4 problems that cannot be easily resolved, such as end-to-end security, mobile communication, and service quality QoS.
Although IPv6 represents the norm in the future, it will continue to co-exist with IPv4 for now. Prior to an extensive application of IPv6, it is best to activate the IPv4/IPv6 double stack through a smooth upgrade of software for existing network equipment. This would enable the IPv6 connection while maintaining existing IPv4 users and service compatibility.
In this regard, the New Rock HX4G/MX8G VoIP gateway, which is a pioneer in the IPv6 capability (subject to upgrade to designated versions), can fully support IPv6 protocols with respect to operator IMS access, SIP basic call, TLS encryption, and TR069 remote management. Users can at their own discretion select the IPv4 or IPv6 connection based on their network environment.
As illustrated, the New Rock VoIP gateway supports access to both IPv4 and IPv6 networks. If the operator’s IP/IMS server is IPv4, the gateway allows direct access to the SIP network without any configuration. If the server is IPv6, the gateway need only set the SIP audio transmission mode as IPv6.
-Investments in existing equipment are protected.
-Existing audio services will not be affected during the smooth transition to the IPv6 network.
-Existing network structure and users’ habits remain the same.
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