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Guilherme Mazui

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What is the Difference Between NGN and IMS?

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The main difference between NGN (Next Generation Network) and IMS (IP Multimedia Subsystem) lies in their purpose and functionality within the telecommunications industry.

NGN is an all-IP telecommunications network that can carry and offer various services, enabling users to access networks and competing service providers. It is designed to provide multimedia services over the internet and is compatible with virtually all networks. NGN focuses on providing multiple services over a unified packet-based core network, rather than a time-division-multiplexing network.

On the other hand, IMS is a functional network architecture that enables the delivery of multimedia services over the internet. It was initially aimed at merging internet and cellular networks to deliver rich multimedia services, and was later extended by the European Telecommunication Standard Institute (ETSI) in the scope of work. IMS has a network framework standard but few applications, while Softswitch is a current NGN service resolution with little standardization, which has already been applied.

In summary, NGN is an all-IP network that supports multiple services, while IMS is a functional architecture for delivering multimedia services over the internet. NGN focuses on providing a unified network for various services, whereas IMS is designed to deliver multimedia services across different networks.

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  • What is the Difference Between NGN and IMS?
  • Comparative Table: NGN vs IMS

    • Comparative Table: NGN vs IMS

    Next Generation Network (NGN) and IP Multimedia Subsystem (IMS) are both technologies related to modern telecommunication networks. Here is a table comparing the differences between NGN and IMS:

    Feature NGN (Next Generation Network) IMS (IP Multimedia Subsystem)
    Definition NGN is a broadband, packet-based network that can handle multiple types of traffic, including voice, data, and video. IMS is a standardized service delivery architecture that enables the delivery of multimedia services anytime, on any device.
    Focus NGN is targeted at the ability to deliver services, not the network itself. IMS adds call session control to the packet network, enabling peer-to-peer real-time communication.
    Services NGN aims to provide unified communication and messaging services. IMS provides unified presence, one system for all services, and one phone number for all devices.
    Transport Layer NGN can make use of multiple broadband, QoS-enabled transport. IMS relies on the transport layer provided by NGN.
    Control Layer NGN focuses on network management and services. IMS enables services and control, adding call session control to the packet network.

    In summary, NGN is a network architecture that provides broadband, packet-based transport for various services, while IMS is a standardized service delivery architecture that leverages NGN to enable multimedia services and real-time communication.

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    Guilherme Mazui

    Guilherme Mazui is graduated in journalism from the Federal University of Minas Gerais (UFMG) and a master's degree in Communication from the University of São Paulo (USP). In addition, he has experience in advertising writing and has worked as a content editor in several companies.