CORE

It is the central and most important part of a telecommunications network. It offers a huge number of services to customers that are interconnected by the access network. Its main function is to direct telephone calls through the public switched telephone network.

HOW DOES THE CORE WORK?

The technologies used for the main installations are mostly network and data link layer technologies. Among the characteristics that a CORE guarantees, the following stand out:

• Aggregation: The highest degree of aggregation can be seen in a network of service providers. Next, there are the distribution networks followed by the edge networks.
• Authentication: determines whether the user requesting a service from a telecommunications network can complete the task within the network.
• Call control or switching: determines the future interval of a call based on call signaling processing.
• Load: deals with the processing and collection of payload data created by multiple network nodes.
• Service invocation: a central network performs the service invocation task for its clients. The invocation of the service can happen online with some precise activity (call forwarding) by the users or unconditionally (call waiting).
• Gateways: they must use a core network to access other networks. The functionality of the gateways depends on the type of network to which they are connected.
• Load: the CORE team can handle the collection and processing of load data generated by various network nodes.

The CORE network is the brain of the telecommunications network. All consumer data is stored there, all charging systems reside there, all the elements to decide where the traffic should go and how it should be treated are in the CORE. This brain is very complex and is made up of a number of elements that, until now, have generally been sold and implemented from single vendors. This has long been a Trojan horse for dominant telecom providers to control a network. It's also a self-perpetuating decision, as evolving from one standard version to another or from one generation to another is much more cost-effective as an upgrade to the current vendor's solution rather than ripping and replacing with a new vendor.