Why ngn

From , these Recommendations have been easily accessible from the ITU web site at no charge. Table 1. The coexistence of both types of services is envisioned. The NGN is expected to inherit the existing telecommunications infrastructure, and this calls for studies on services and functions that should be provided by the NGN as a public network. Network capabilities for achieving the services described above and the functional architecture for achieving those capabilities are being specified.

An overview of the NGN is shown in Fig. Conceptually speaking, the NGN consists of a service stratum and a transport stratum. The service stratum provides a variety of functions as communication services such as user authentication and registration, discovery of communication partners, and negotiation of session conditions as well as supplementary services to support and enhance those services.

The transport stratum transmits IP packets on an end-to-end basis while maintaining QoS and providing security. When working in a unified fashion, these two function groups enable the provision of NGN communication services. In the service stratum, the section for achieving basic communication services is being prescribed as service control functions. The ITU-T Recommendation reflects the views of China and other countries that place importance on complete reproduction of the existing telephone network, and it allows for call-server implementations as well as IMS-based one.

The transport stratum is equipped with Network Attachment Control Functions NACF that perform functions such as user and terminal authentication and registration and IP-address assignment and a Resource Administrate Control Function RACF for determining network usage conditions and guaranteeing communication quality. List of Partners vendors. The Nigerian naira is made up of kobos. As of December , 1 U.

The Nigerian naira replaced the country's use of the British pound in Pound to naira conversion was set at a rate of two naira for every pound. The government made plans to once redenominate the currency at a old nairas to 1 new naira but suspended those plans. The U. The currency has been pegged to the U. The Central Bank of Nigeria manages and distributes the Nigerian naira.

One of the bank's primary roles to control the inventory of NGN in circulation, as well as to ensure the country's financial security and attempt to keep prices stable.

Naira coins and notes are minted by the Nigerian Security Printing and Minting Company, with some currency also produced by overseas printing companies. Coins include the 50 kobos, 1 naira, and 2 nairas pieces circulated since Banknotes include the 5, 10, 20, 50, , , , nairas notes; 50 kobo and 1 naira notes are no longer in use.

This commemorative note has a quick-response code QRC that when scanned takes the user to a website about Nigeria's history. Nigeria is located on the West Africa coast and derives its name from the Niger river. The region was home to many ancient and prosperous societies before falling under British colonial rule in the s. In , the territory became the independent Federation of Nigeria. Shortly after, the country spiraled into a civil war which lasted until the s.

France, Egypt, Britain, and the Soviets meddled in the country during the years of war. Until , the leadership of Nigeria alternated between elected officials and military dictatorships.

Military rule, political corruption, and mismanagement damaged the economy and ran up massive foreign debt. Nigeria defaulted on its debt as oil prices fell in the s. Renegotiation of its Paris Club debt occurred in , and in Nigeria cleared its debt.

Widespread and rampant inflation has been a significant problem for the Nigerian economy. Since then, inflation has averaged around 12 percent. According to World Bank data, Nigeria is a lower-middle-income emerging market which is still struggling with the impact of inflation. The country experienced Expert insights and strategies to address your priorities and solve your most pressing challenges. Information Technology Gartner Glossary.

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