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Communications Magazine, IEEE

Issue 4 • Date April 1996

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Displaying Results 1 - 12 of 12
  • Wireless Data Networking [Book Review]

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    Freely Available from IEEE
  • Computer Telephony [Guest Editorial]

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    Freely Available from IEEE
  • Preface to This Special Issue on Computer Telephony

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    Freely Available from IEEE
  • A historical perspective of CSTA

    Page(s): 30 - 35
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    Computer-supported telecommunications applications (CSTA) is one of the more important standards for computer-telecommunications interfaces, addressing service and protocol definitions used to provide a link between computers and telecommunications systems. The services provided on a CSTA link between a telecommunications and computer network work much like the services that telecommunication network provides to a user at an access point. At the point of attachment to a telecommunications network, the "phone numbers" are sufficient to describe the desired object for involvement with a service. If a new object were created for the purposes of CSTA (e.g., a monitoring group), an identifier which would work like a phone number in that network would be assigned to that object. Additional handle-identifiers are created and provided after a service is initiated to differentiate between instances of the service being provided. To show this relationship, a functional model was created. View full abstract»

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  • An introduction to TSAPI and network telephony

    Page(s): 48 - 54
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    Discusses the integration of the telephone into the desktop work environment. This objective can be achieved in a number of different ways. The approach described uses the client-server model. Network telephony is a service that provides the capability to establish, answer, route, and terminate telephone calls under the control of applications on either desktop computers or servers resident in the network. It is accessed by applications via a standard programming interface (telephony services application programming interface, TSAPI) and utilizes a centralized server-based interface with the private branch exchange (PBX) to access the switching and telephone control services that the PBX provides. Creating a logical control link between the application software on the desktop computer and the telephone on the desk eliminates the need to physically connect the telephone to the desktop computer. The author distinguishes between the application programming interface and the network telephony service provider. The author assumes the services are provided by NTS R2.2 release and a PBX-based switching service. However, the author uses the term PBX to include switching services provided by key telephone or hybrid systems, PC-based telephony cards, or other appropriate technologies. View full abstract»

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  • The communicating PC

    Page(s): 36 - 42
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    As the PC entered its second decade of evolution, it started a transformation into a general-purpose communication tool. This article takes a look at a number of established and emerging technologies that contribute to this ongoing transformation of the PC. Although each of these technologies individually is perfectly capable of enabling compelling PC applications in specific market segments, it is their use in combination that potentially supports the most useful real-world communications applications. The ability of an applications program to use seemingly independent technologies in concert is no coincidence, but requires proper upfront consideration and careful design. This article presents technologies and common interfaces promoted by Intel for the Microsoft Windows family of operating systems. Although several alternative solutions exist and are promoted by others, none of them offer the degree of interworking needed to make the “communicating PC” a coherent entity. We start by taking a look at the PC's role in computer telephony integration (CTI) and go on to consider call processing, protocol-independent data transport, simultaneous voice/data communication, unattended PC operation, plug and play CTI peripherals and mainstream implementations View full abstract»

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  • Why isoEthernet will change the voice and video worlds

    Page(s): 55 - 59
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    The answers to many of the communications problems businesses face lie in the integration of telephony, data collaboration, and video communications with the desktop computer, doing it inexpensively, doing it seamlessly with the local area and wide area networks. The adoption of isochronous Ethernet (isoEthernet) by the IEEE 802.9 committee as the new multimedia standard in LANs has given rise to new technology that converges voice, collaborative video, and data at the desktop. The official name for isoEthernet is ISLAN16-T, and it is sponsored by the IEEE 802.9 committee. IEEE 802.9a, the document specifying the isoEthernet standard, became an official standard at the end of 1995. The intent behind the ISLAN16-T standard is to define a LAN transport capable of handling synchronous services such as voice and video while retaining compatibility with 10Base-T. ISLAN16-T opens the door to a multitude of new applications that can reshape work and communications habits to make businesses more productive, responsive, and profitable View full abstract»

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  • Issues in enterprise e-mail management

    Page(s): 78 - 82
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    The existing e-mail management standards are all proposed for specific e-mail technologies. Unless everyone agrees on a common backbone e-mail technology and its management, it will be difficult to tackle enterprise e-mail management. The authors provide management solutions to the following problems in an enterprise e-mail environment: message transfer agents (MTAs) and e-mail gateway monitoring; e-mail tracking; and congestion management. When an e-mail manager evaluates an e-mail protocol, it should examine how the protocol tackles these problems View full abstract»

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  • Design considerations for computer-telephony application programming interfaces and related components

    Page(s): 43 - 47
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    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 View full abstract»

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  • The future of computer telecommunications integration

    Page(s): 66 - 69
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    Describes activities in integrating the desktop computer with the telephone system (computer-telephony integration, or CTI). CTI is but one step in the evolution to a seamless and interoperable integrated telecommunications and computer infrastructure, and this may arrive surprisingly soon, enabled by some recent technological developments View full abstract»

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  • Overview of implementing ATM based enterprise local area network for desktop multimedia computing

    Page(s): 70 - 76
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    The authors discuss important implementation issues in an ATM-based enterprise network, and propose possible migration strategies for the smooth introduction of ATM into the desktop computing environment. They present the ATM traffic service classes and the associated traffic management functions. The authors cover the latest ATM forum standardization efforts on traffic management functions and LAN emulation. Finally, they discuss how to seamlessly support the existing transport control protocol (TCP)/Internet protocol (IP) in an ATM environment View full abstract»

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  • Computer telephony architectures: MVIP, H-MVIP, and SCbus

    Page(s): 60 - 64
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    The author discusses the objectives of a computer-telephony integration (CTI) bus for the PC, TDM, network synchronization, digital switching, multichassis connections, MVIP bus technologies, SCbus technology, and CTI client server architectures View full abstract»

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Aims & Scope

IEEE Communications Magazine covers all areas of communications such as lightwave telecommunications, high-speed data communications, personal communications systems (PCS), ISDN, and more.

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Meet Our Editors

Editor-in-Chief
Sean Moore
Centripetal Networks