The intelligent network concept

The intelligent network (IN) concept evolved from the networks which are planned or in existence in 1988 to provide network services such as the 800 service. The IN architecture will require an expansion of the capabilities which recognize the need for specialized processing and formulate a query to a database system. The expanded capabilities, along with an expected increase in the number of calls requiring special processing, place greater demands on system resources. The distributed nature of service implementation, along with the complex interactions among services, requires advanced, highly efficient operations. The authors describe the IN architecture and the process of creating a service in that environment. An illustrative example is include     

Mobile agents - enabling technology for active intelligent networkimplementation

The emerging notion of active networks describes the general vision of communication network evolution, where the network nodes become active because they take part in the computation of applications and provision of customized services. In this context mobile agent technology and programmable switches are considered as enabling technologies. This article looks at the impact of mobile agent technology on telecommunication service environments, influenced by the intelligent network (IN) architecture. The authors illustrate how the integration of mobile agent platforms into IN elements, notably into the IN switches, will realize an active IN environment. This enables telecom services implemented through mobile service agents on a per user basis to be instantly deployed at programmable switching nodes, which results in better performance and fault tolerance compared to traditional IN service implementations     

Intelligent network/2: The architecture-The technicalchallenges-The opportunities

The Intelligent Network/2 (IN/2) architecture concept diverges from the traditional new service introduction approach by distributing call-processing capabilities across multiple network modules, by constructing network services with service-independent capabilities, and by using standard signaling protocols among the network elements. The IN/2 approach provides opportunities to implement new services while reducing the service introduction interval. The IN/1 architecture provides new-service introduction from a centralized point, allowing users throughout a wide geographic area to have access to the service simultaneously. The IN/2 concept extends the IN/1 approach and sharply reduces the new-service introduction interval. IN/2 applies the premise that multiple network services or service features can be constructed from a set of reusable network capabilities, which apply to many services and are therefore independent of a particular service application. An overview of the IN/2 architecture is presented, highlighting the key technical issues     

Toward an all-IP-based UMTS system architecture

Looking into the future, two main drivers for the mobile telecommunications market can be identified: third-generation mobile systems (e.g., UMTS) and the Internet (e.g., the introduction of IP technologies like voice/multimedia over IP in mobile networks). UMTS is seen as the enabler of wireless multimedia applications and portability of a personalized service set across network/terminal boundaries, as defined within the virtual home environment (VHE) system concept. In light of these evolutions, this article investigates the impact of the evolution toward an all-IP UMTS network architecture on the UMTS service architecture, which is based on the VHE concept. The article discusses two possible scenarios for supporting VoIP services in the UMTS service architecture and analyzes their applicability in an all-IP-based UMTS network. The first is based on the traditional centralized IN service architecture. The second proposes a new decentralized architecture based on direct control of VoIP call control equipment by open service architecture interfaces     

The intelligent network in France

The introduction of an intelligent network (IN) architecture in France by France Telecom is described. Two main technical issues of present IN architecture are discussed: the programming interface to be used for service creation and the control-resource interface such as the SSP/SCP interface. The long-term evolution of IN, including the application to networks other than public switched telephone networks (PSTN) and the development of operating systems to handle IN-supported services, is outlined. Major technical problems in implementing a global IN architecture are also discussed     

IN/B-ISDN综合实现视频点播的方案

本文提出了在ＩＮ／Ｂ－ＩＳＤＮ综合的平台上实现视频点播业务的新方案,即用智能网的方法将Ｂ－ＩＳＤＮ宽带网络中的各种ＯＶＤ服务器统一控制和管理起来,既方便用户接入ＶＯＤ业务,又可使ＶＯＤ资源得到充分的利用。     

Perspectives on the AIN architecture

The advanced intelligent network (AIN) is examined in terms of its history, present day architecture, and future evolution. The history of the AIN is traced from predivestiture 800 and calling card service capabilities, through IN/1, IN/2, and IN/1+, leading to the various AIN releases. The present-day view of the AIN architecture includes the switching system and other network systems, as well as operations. The AIN functionality supported by this architecture is described from a customer point of view, by means of an illustrative service that could be provided from an AIN platform. The next steps in the AIN evolution are discussed. An appendix that provides detailed information about the AIN Release 1 call model is included     

Globalizing IN for the new age

The future directions of intelligent network (IN) enhancements are discussed. The reasons why globalization of service provisions based on IN technology will be indispensable are also discussed. The functions required for global INs are analyzed. Possible schemes for IN function distributions are identified. The functions that should be centralized and distributed are clarified. Global IN architecture models are proposed. The areas which need extensive study for global INs are reviewed     

PHS roaming signaling protocol architecture toward global mobilitynetwork

The network for supporting the global personal communication is called the global mobility network (GLOMONET), where global mobility is guaranteed by coordination between intelligent networks (INs). This paper describes the implementation of a roaming signaling protocol for the personal handy-phone system (PHS) GLOMONET, clarifying the concepts of the PHS architecture regarding the GLOMONET. The PHS is a more economical personal communication system than existing cellular systems, by introducing the concept that the PHS service is provided by the most effective use of the existing ISDN and IN functions, where the majority of network functions to provide ISDN services are commonly used for functions for PHS service provision. The PHS mobility function realized by the IN guarantees flexible and effective roaming service provision for the globalization of future personal communication. The proposed PHS signaling protocol architecture is based on the intelligent network capability set 2 (IN CS2) defined by the International Telecommunication Union-Telecommunication Standardization Sector (ITU-T) Study Group 11 and a visitor location register (VLR) database scheme with efficient signal transfer in the GLOMONET. The PHS specific roaming signaling protocol is defined by the service-independent IN application protocol (INAP). The proposed PHS concepts and roaming signaling protocol were reflected to the national telecommunications standards in the Telecommunication Technical Committee (TTC) and standards in the PHS-memorandum of understanding (MoU)     

Impact of the intelligent network on the capacity of networkelements

The effect that integration of the intelligent network (IN) concept into the existing network architecture has on the capacity of the various network elements is addressed. The effect of excessive load on that and other existing services is also examined. The discussion covers: methods of characterizing capacity and performance; major causes of increased load with the IN; perception of increased delay by the user; effect of delay on service introduction; and methods of improving IN performance. The example of the call-forwarding service is used to show the effect that IN can have on the performance of services, as perceived from the delays experienced by the user     

Mobile agent and CORBA technologies in the broadband intelligentnetwork

This article presents an IN architecture that is based on distributed object and mobile agent technologies. It deviates from traditional IN in two prominent ways: first, by substituting message-based protocols with a CORBA distributed processing environment. The new communications infrastructure not only serves to convey IN flows, but also functions as a potent unifying location-transparent layer. Second, the new architecture makes heavy use of mobile agent technology. Service logic programs are implemented as mobile agents, and are thus not constrained to control the switch's operations remotely from a central location. Instead, they can migrate and control its operations locally. The infrastructure elements of the architecture exploit this ability of service logic programs by cloning them and dragging their clones to the appropriate locations in response to excess processing or signaling load. The architecture is in this way self-balancing, in contrast to the centralized nature of traditional IN. A prototype implementation is presented along with a service creation framework that enables the IN service designer to disregard environment-related issues and concentrate on the IN logic of the services per se     

用VXML促进智能网业务的发展

文章提出了一种基于智能网的语音可扩展标记语言(VXML)语音浏览器;介绍了该浏览器的系统结构;给出了VXML标志到INAP消息的映射策略;并以应用服务器(AS)侧发起的语音短信业务流程和网络侧发起的短信重听业务流程为例,描述了VXML语音浏览器功能实体之间的业务流程.文章认为由于社会对声讯、聊天、企业门户等业务的需求不断增加,传统智能网业务生成系统已不能满足用户需要,而VXML适合开发各种交互式语音回应(IVR)业务,可促进智能网业务的发展.     

Intelligent network evolution issues

The exchange telephone industry has developed a concept of future intelligent network characteristics that is gaining widespread acceptance. The concept is characterized by a service-independent architecture, integrated operations and service management systems, and programmable network entities. The full realization of this vision will require major advancements in the control software and signaling capabilities of existing network elements and operations systems, as well as the development of entirely new systems. Evolutionary strategies are discussed that can move the embedded network toward the ultimate goal and begin to achieve many of the benefits of the future vision in the near term. In particular, an intermediate intelligent network architecture called IN/1+, which could be implemented by 1991, is presented. IN/1+ is focused on circuit-switched capabilities and provides a significant movement toward the intended IN/2 architecture with a reasonable commitment of industry resources     

移动智能网中SCP的设计研究

给出了GSM（全球移动通信系统）和智能网结合的总体结构，指出了移动智能网中SCP（业务控制点）设计要解决的问题：（1）怎样与HLR（归属位置寄存器）进行通信以得到移动网中与移动有关的数据，（2）怎样解决智能业务与移动网中已有业务的交互．本文对这两个问题给出了解决办法．最后，为了让业务提供者设计与移动有关的业务，定义了三个与移动有关的新SIB（业务无关构件）     

IP电信网中的业务体系结构

文章阐述了下一代IP电信网业务结构的基本要求，通过与传统智能网的比较，分析了基于API的开放式业务结构的技术特点，并详细介绍了软交换网络的业务体系结构和3G网络的OSA，Parlay业务结构，最后简要说明了智能终端的业务接口，指出其进一步的研究课题。     

Consideration on common channel signaling evolution for globalintelligent networking

With the evolution of digital networks and intelligent network (IN) capabilities, the role of common channel signaling has become more and more important. In respect to IN, common channel signaling would play a significant role not only inside one network but also over multiple networks. International credit card validation and internetworking for digital mobile services represented by GSM (Global System for Mobile Communications) are examples which utilize internetwork signaling capabilities in the framework of the initial-phase IN. Enhanced service providers (ESPs) may access the public network through the common channel signaling interface to make use of the IN capabilities, as is being discussed in terms of ONA (open network architecture) or ONP (open network provision). This paper first identifies various scenarios where internetwork signaling interactions would take place in the framework of IN in the forthcoming era. It then identifies various requirements to cope with these scenarios. It finally discusses the directions for evolution of common channel signaling toward global intelligent networking     

基于IN/Internet互通技术实现因特网呼叫等待业务

智能网 (IN)是一个能快速灵活地引入各类新业务的智能化业务控制体系 ,已广泛应用于电信网 ,它与Inter net的互通已成为IT业界的热点研究课题。文中根据作者参与“八六三”课题研究的成果 ,介绍了基于IN/In ternet互通技术实现ICW (Internetcallwaiting)业务的网络结构 ,分析了ICW业务实现中的关键技术和智能网的支持功能 ,提出了ICW的两类业务提供方式和业务触发方式 ,给出了呼叫接受、呼叫等待、呼叫前转等典型呼叫流程。     

IBIS: a testbed for the evolution of intelligent broadband networkstoward TINA

This article analyzes a possible path for the evolution of telecommunication networks toward open distributed architectures like the TINA-C architecture. The results of a research project called IBIS carried out within the CoRiTeL Laboratory are presented. The IBIS project starts from the activities of the ACTS project INSIGNIA, which has proposed and demonstrated an architecture for the integration of the intelligent network concept over B-ISDN platforms (the so-called intelligent broadband network, IBN). In the IBIS approach, TINA service components replace the traditional IN service logic, providing the intelligence needed to control broadband services in a very flexible and open environment. The handling of the transport connections is performed in a more traditional way, exploiting the capability offered by the IBN. This article focuses on how the TINA and IBN paradigms can profitably interact, providing the intelligence to support advanced multimedia services     

TMN and new network architectures

The impact of telecommunication management network (TMN) concepts when applied to the management of newly emerging network architectures is illustrated using the example of intelligent networks (INs). An in-depth comparison of TMN and IN architectural aspects leads to a number of conclusions showing a significant degree of commonality between the two networks. The IN is analyzed as a telecommunication network architecture aimed at reducing service creation and modification development costs and delays. This approach unifies the processing techniques for a number of highly diversified network services. Similarly, the TMN, which covers a wide range of management resources organized into a unique architecture, tends to unify operation, administration, and maintenance (OAM) for complex and evolving communication networks, despite their highly diverse network components     

Using TINA concepts for IN evolution

This article proposes solutions that use TINA concepts for the future evolution of IN. It focuses on the specific need to provide a software architecture for the IN service control function which controls the transport network through INAP. After giving an overview of the TINA architecture, the article examines how it can be applied to IN. Several aspects are considered, such as architectural modeling, application of software technology and methodology, and definition of sets of standard open interfaces. The article concludes with a view on related activities in industrial fora