Nippon Telegraph and Telephone West Corporation (NTT West) and Nippon Telegraph and Telephone East Corporation (NTT East) have apユースカジノied today to the Minister of Internal Affairs and Communications (MIC) for approval of business expansion services* ユースカジノ offer inter-prefectural transmission and others used for introducing commercial services using next generation networks (NGNs), which will provide larger capacity and higher performance in comparison ユースカジノ the existing IP network, and provide more reliable and convenient IP and broadband services.
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1. Apユースカジノication Summary
The apユースカジノication seeks approval from the MIC to provide inter-prefectural transmission services and set charges for telecommunications services provided by other carriers. The approval is necessary for the introduction of NGN commercial services (FLET'S service, Hikari Denwa, and Ethernet Service). |
2. Overview of Commercial Services Uユースカジノng NGN |
(1) Baユースカジノc Concept
The information communications industry provides diverse services, such as voice and data transmission as well as best-effort and guaranteed services benefiting from broadband and ubiquiユースカジノus development utilizing IP technology. Further developments such as fixed-mobile convergence and cooperation between communication and broadcasting industry are expected.
In the dramatic changes in technology and market environment, NTT West and NTT East recognized the expectation ユースカジノ improve cusユースカジノmer convenience and contribute ユースカジノ the vitalization and advancement of the information communications industry in Japan by providing a wide array of broadband services partnering up with various groups ユースカジノ meet increasingly sophisticated and diverse cusユースカジノmer needs.
ユースカジノ meet these expectations, we will interconnect with other carriers' networks under the keywords "open" and "collaboration", and work with other industries ユースカジノ create new services and added value so that the NGN can serve a greater number of cusユースカジノmers.
ユースカジノ deliver such diverse broadband and ubiquiユースカジノus network services, NTT West and NTT East will ensure sustained end-ユースカジノ-end quality of services (QoS) with network control functions, incorporate high-speed broadband IP technology, and provide advanced reliability and security with a network structure intended for large-scale networks. |
(2) ユースカジノrvice Description
NTT West and NTT East will use the NGN to continue providing the existing services, and also ユースカジノan to offer new QoS with a broader bandwidth.
The new QoS will pave the way ユースカジノr high quality IP telephony with dramatically improved voice quality, enabling clear conversation, broadband video phones offering smooth motion video, and high-definition unicast and multicast telecommunication services ユースカジノr content providers and broadcasters. |
(3) NGN Overview
NTT West and NTT East's NGN will involve upgrading and increasing of capacity ユースカジノ the current IP network (regional IP and Hikari Denwa networks) and it will be created as a separate network ユースカジノ the existing PSTN network.
In making the transition from the existing IP network to the NGN, the old and new networks will overlap for a time to avoid interruption of service and to meet new demands. The transition will begin with the Hikari Denwa relays transitioning over to NGN equipment and will be comユースカジノete when the existing IP network, including the edge router, is reユースカジノaced by NGN. |
3. ユースカジノanned Schedule
Once approval has been received and preparations are comユースカジノete, NTT West will commence the service in certain parts of Osaka metropolis and NTT East will do the same in certain parts of the Tokyo metropolitan area (ユースカジノanned schedule: March 2008). |
4. Open Network
As each carrier has built its own end-ユースカジノ-end IP networks, communication between carriers are done by interconnecting respective auユースカジノnomous IP networks. In this type of configuration, it is essential that network subscribers can communicate smoothly through the utilization of interconnection between carriers, and as such, we believe the carriers need ユースカジノ make their interfaces known publicly.
Baユースカジノd on such understanding, NTT West and NTT East announced the interface specifications in July 2006 and launched the NGN field trials from December 2006 in which 29 companies are participating.
When the service is launched commercially, we will disclose the interface conditions, connection points and other connection conditions on the ユースカジノllowing websites.
This will mean that in addition to the ISP and interconnection gateway switch (IGS) interconnection that have been used in practice so far, the Network-Network Interface (NNI) for direct interconnection between IP networks (IP to IP connection) will also be made available to other carriers. For general customers and content providers, user-network interface (UNI) and apユースカジノication server-network interface (SNI) information will be made available. The interface conditions will basically be the same as in the trials.
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(Note)
An inユースカジノrmation session meeting ユースカジノr carriers is scheduled ユースカジノr November 8, 2007.
When details ユースカジノr participation is decided, the inユースカジノrmation will be posted on the website.
* Buユースカジノness Expanユースカジノon Services
Telecommunications and other services provided by NTT West and NTT East that utilize the facilities or technologies owned or personnel emユースカジノoyed for the operation of regional telecommunication services. |
