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1.
Future telecommunications networks will consist of integrated packet-switched (IP and/or ATM), circuit-switched (PSTN), and wireless networks. Service providers will offer a wide portfolio of innovative applications over these integrated networks. Doing so rapidly and efficiently requires open network APIs, with a key API being that for call control, as well as for coordination and transactions. The JAIN community is defining an API for Java call control and Java coordination and transactions. The JCC API defines the interface for applications to initiate and manipulate calls, while JCAT defines the facilities for applications to be invoked and return results before or during calls. Note that in this context a call refers to a multimedia, multiparty, multiprotocol communications session. The JCC/JCAT Edit Group of JAIN is in the process of defining the first version of the JCC/JCAT API specification, which is expected to be released in early 2000. This article describes the background of and motivation for the design of the JCC/JCAT API. We describe the AIN and JTAPI call models on which the JCC/JCAT API is based. We then describe the scope of JCC/JCAT and its relationship to other JAIN Edit Groups defining facilities for enabling service creation. Finally, we describe the requirements and example service drivers for JCC/JCAT, as well as the initial proposed design and structure for JCC and JCAT 相似文献
2.
New business opportunities have emerged for network operators to offer a new generation of interfaces directly to solution
providers that expose information and control in various intelligent networks. The paper describes the commercial rationale
and operational benefits of these application level interfaces. The Parlay Group has defined application programming interfaces
(APIs) to expose network capabilities including wireline, mobile, IP QoS, and messaging to external enterprises. The Parlay
Group and the API specification are described, together with an illustration of how the API could be used to create an enterprise
workflow solution that integrates capabilities in different networks. 相似文献
3.
The Parlay Network API Specification 总被引:3,自引:0,他引:3
New business opportunities have emerged for network operators to offer a new generation of interfaces directly to solution providers that expose information and control in various intelligent networks. The paper describes the commercial rationale and operational benefits of these application level interfaces. The Parlay Group has defined application programming interfaces (APIs) to expose network capabilities including wireline, mobile, IP QoS, and messaging to external enterprises. The Parlay Group and the API specification are described together with an illustration of how the API could be used to create an enterprise workflow solution that integrates capabilities in different networks. 相似文献
4.
JAIN protocol APIs 总被引:3,自引:0,他引:3
JAIN envisions the creation of a number of Java APIs that abstract the details of networks and protocol implementations, and allow for the development of portable applications. The JAIN Protocol Experts Group (PEG) will focus on developing Java APIs for protocols used in telephony, INs, wireless networks, and the Internet. The PEG is organized into an SS7 subgroup and an IP subgroup. The article provides an introduction to PEG. It next describes the JAIN SS7 APIs. It then describes the JAIN IP APIs. The article also explains how JAIN SS7 and IP APIs can be leveraged for the converged SS7-IP networks of the future and describes the JAIN PEG roadmap 相似文献
5.
JAIN: a new approach to services in communication networks 总被引:5,自引:0,他引:5
JAINTM, a set of integrated network APIs for the Java TM platform, provides a framework to build and integrate solutions (or “services”) that span across packet (e.g., IP or ATM), wireless, and PSTN networks. The objective of JAIN is to provide service portability, convergence, and secure access (by services residing outside of the network) to such integrated networks. JAIN is defined and specified by a large number of participating communication companies (the JAIN Community), and according to a well-documented process (the Java Community Process or JCP). The objective of the JAIN Community is to create an open market for services across integrated networks using Java technology. The authors provide the JAIN business case. They then summarize how the JAIN Community works, and introduce how the JAIN Community is organized. They also explain how separate JAIN work items fit together. In particular, they provide the rationale for the currently supported levels of abstraction (in terms of session/call signaling models) in JAIN, and look at possible implementation scenarios 相似文献
6.
7.
Recently there has been an enormous increase in efforts to open up telecommunication networks for application development. In opening up the network, new business models emerge where applications can be developed and provided by enterprises outside the traditional network operator domain. This new business model, combined with the fact that applications can be built using standardized API with off-the-shelf IT technology and tools, will result in new innovative applications that will hit the market with drastically reduced development cycles. This article provides an overview of the Parlay/OSA initiatives concerning the specification of a set of open standardized API. Furthermore, the article outlines some architectural aspects that are implied and implicitly contained in the Parlay/OSA specifications. These are critical for understanding the implications when allowing access to the network via Parlay/OSA. The article then outlines different types of applications that can be built using Parlay/OSA. Finally, we conclude with an analysis of the future of Parlay/OSA. 相似文献
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9.
The implementation of new mobile communication technologies developed in the third generation partnership project (3GPP) will allow to access the Internet not only from a PC but also via mobile phones, palmtops and other devices. New applications will emerge, combining several basic services like voice telephony, e-mail, voice over IP, mobility or web-browsing, and thus wiping out the borders between the fixed telephone network, mobile radio and the Internet. Offering those value-added services will be the key factor for success of network and service providers in an increasingly competitive market. In 3GPP's service framework the use of the Parlay APIs is proposed that allow application development by third parties in order to speed up service creation and deployment. 3GPP has also adopted SIP for session control of multimedia communications in an IP network. This article proposes a mapping of SIP functionality to Parlay services and describes a prototype implementation using the SIP Servlet API. Furthermore, an architecture of a Service Platform is presented that offers a framework for the creation, execution and management of carrier grade multimedia services in heterogeneous networks. 相似文献
10.
Applications offered to end users as value-added services, or more simple, services, are crucial for the survival and success of service providers. Two main sets of standards have emerged for Internet telephony: H.323 from the ITU-T and SIP from the IETF. Unfortunately, the related application development frameworks are rather weak. Parlay, a set of standard object-oriented and signaling protocol-neural APIs, is an alternative. It allows applications to access network functionality, including call control, in a controller manner. Call control makes it possible to establish, modify, and tear down calls. It is the main functionality offered by Internet telephony networks. We have built a call control application in a SIP environment, using the call control APIs offered by Parlay. The application is a multiparty game. This article describes the case study. The mapping of the APIs onto SIP is presented, and its implementation is described. Related work reviewed, and the lessons learned are discussed. Parlay call control APIs are suitable for application development in Internet telephony. However, well isolated extensions are needed to realize their full potential. 相似文献
11.
GUAN You-qing SHEN Su-binResearch Center of Network Technology Nanjing University of Posts Telecommunications Nanjing P.R.China 《中国邮电高校学报(英文版)》2006,13(2):43-49
1Introduction ParlayMMCCSAPI[1]inParlay/OpenServiceAccess(OSA)specificationsprovideinterfacesforthecreation,operationandmanagementofmultimediaservicesin heterogeneousnetworks.Athirdpartyserviceprovider,byusingtheseAPI,suppliestelecommunicationsvalue added… 相似文献
12.
To provide responsive information services in a ubiquitous computing environment, service software and system development are indispensable. A component-based ubiquitous information system with a JAIN (Java APIs for Integrated Networks) platform to achieve seamless transmissions and reach-everywhere communications was designed in our research. In this development, numerous ubiquitous service modules were identified: location management, roaming, mobile IP and WAP networking. These component-based network modules were constructed using a component composition language with component specification and interface definition, running on top of a distributed service architecture using a JAIN platform to distribute the ubiquitous information services to mobile users. Two applications, Wireless-Application-Protocol (WAP) Mail and Video-on-Demand (VoD) services, show that the JAIN-like platform with the developed networking components effectively fills the gap for application developers between mobile appliances and various kinds of ubiquitous information services. 相似文献
13.
《Communications Magazine, IEEE》2009,47(5):108-113
Next-generation networks promise to provide a richer set of applications for the end user, creating a network platform that enables the rapid creation of new services. Significant progress has been made in the standardization of NGN architecture and protocols, but little progress has been made on open APIs. This article outlines the importance of open APIs and the current achievements of the standards bodies. It concludes with a brief set of issues that standards bodies must resolve in relation to these APIs. 相似文献
14.
Discusses computer telephony integration (CTI) architecture, including the application programming interface (API) and underlying operating system components and the benefits they can bring to all segments of the computer telephone industry. Although CTI APIs have existed in various forms for more than two decades, the work of crafting the ideal interface continues. As operating systems and telecommunications network technology evolves, so do the APIs and system components that bring together the computing and communications worlds. The author presents some of the considerations that have gone into the design of the Windows telephony application programming interface (TAPI) and which will continue to guide the further evolution of the interface 相似文献
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16.
The Application of WSFL in the Parlay X Based Services Creation 总被引:5,自引:0,他引:5
SUN Li-juan DU Xiao-gang TANG XinDepartment of Computer Science Technology Nanjing University of Posts Telecommunications Nanjing P.R.China 《中国邮电高校学报(英文版)》2005,12(1)
1 Introduction NGN abstracts beneath protocols as a set of easy under standing interfaces through open Application ProgrammingInterfaces (API). These APIs are independent with net works, so the services created with these APIs are irrespec tive to special network details[1] ParlayXAPI is a set of more single and higher abstractedAPIs than Parlay API. These ParlayXAPIs have the abilityto access the network functions, and are easy to understandby IT developers to use in … 相似文献
17.
电信网与Internet走向融合,而Parlay接口与Web服务作为各自领域开放技术的代表,也开始了互相结合。Web服务是一种基于可扩展标记语言(XML)、面向消息的分布式计算技术,与公共对象请求代理体系结构(CORBA)等分布式对象技术相比,在Internet范围内的互操作性更好。Web服务是实现面向服务体系结构(SOA)的最佳候选技术之一。基于Web服务的Parlay接口包括Parlay Web服务和Parlay X。其中,Parlay Web服务模拟面向对象的Parlay应用编程接口(API)定义,Parlay X的设计遵循Web服务面向消息的技术发展思路。基于Web服务的Parlay接口技术为构建电信网和Internet融合环境下的统一业务体系提供了基础。 相似文献
18.
R M Stretch 《BT Technology Journal》2003,21(3):141-159
This paper sets out to explain the concepts behind the development of the Parlay API. The paper firstly describes the historical
origins of the development, showing where the concepts initially began and describing some early work undertaken by the TINA
Consortium on distributed software environments. The paper then goes on to describe the architecture upon which the Parlay
API is built, to analyse the constituent parts of the API, particularly the call control element, and to give an overview
of the ideas behind what has become known as Parlay X.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
19.
Distributed network computing over local ATM networks 总被引:1,自引:0,他引:1
Mengjou Lin Hsieh J. Du D.H.C. Thomas J.P. MacDonald J.A. 《Selected Areas in Communications, IEEE Journal on》1995,13(4):733-748
Communication between processors has long been the bottleneck of distributed network computing. However, recent progress in switch-based high-speed local area networks (LANs) may be changing this situation. Asynchronous transfer mode (ATM) is one of the most widely-accepted and emerging high-speed network standards which can potentially satisfy the communication needs of distributed network computing. We investigate distributed network computing over local ATM networks. We first study the performance characteristics involving end-to-end communication in an environment that includes several types of workstations interconnected via a Fore Systems' ASX-100 ATM switch. We then compare the communication performance of four different application programming interfaces (APIs). The four APIs were Fore Systems' ATM API, the BSD socket programming interface, Sun's remote procedure call (RPC), and the parallel virtual machine (PVM) message passing library. Each API represents distributed programming at a different communication protocol layer. We evaluated two popular distributed applications, parallel matrix multiplication and parallel partial differential equations, over the local ATM network. The experimental results show that network computing is promising over local ATM networks, provided that the higher level protocols, device drivers, and network interfaces are improved 相似文献