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Author Abrahams, John R.

Title Centrex or PBX : the impact of IP / John R. Abrahams, Mauro Lollo.

Imprint Boston : Artech House, ©2003.

Item Status

Description 1 online resource (xvi, 161 pages) : illustrations.
Series Artech House telecommunications library
Artech House telecommunications library.
Note Includes index.
Contents Virtual PBX Service -- Integration with On-Premise Switches -- Multiple Centrex Systems -- Investment in Centrex Software -- Development of Internet Protocol Centrex -- Blurring the Boundaries -- Internet Protocol Centrex -- Interactive Communications over Internet Protocol -- Layer 3 and 4 Protocols -- IP Telephony -- Interface Standards -- IP Centrex Configurations -- Hybrid IP-Centrex Service -- Trends to Full IP-Centrex -- Softswitch Characteristics -- Network Considerations for IP-Centrex -- Requirements for VoIP -- LAN Requirements -- WAN Requirements -- Deployment Strategies for IP-Centrex -- IP-Centrex Systems and Applications -- IP-Centrex Systems -- Alcatel -- Ericsson -- Lucent Technologies -- Nortel Networks -- Siemens ICN -- Cisco Systems -- Sylantro Systems -- Tacqua Systems -- Features and Applications -- Telephone Sets and Consoles -- Examples of IP Phones -- Attendant Consoles -- Wireless Capabilities -- Unified Messaging -- Speech-Enabled Call Routing -- Contact Center Applications -- Managed Networks -- LAN Considerations -- WAN Requirements -- Local Access Facilities -- Broadband Availability -- DSL Services -- Cable Modems -- Next Generation Wireless Services -- Extended Ethernet -- Summary of IP-Centrex Systems and Networks -- IP-PBX Systems and Applications -- Architectures for IP-PBX Systems -- Current IP-PBX Systems -- Alcatel -- Avaya -- Cisco Systems -- Verizon -- C & W -- Mitel Networks -- NEC -- Nortel Networks -- Siemens -- 3COM -- Advantages of IP-PBXs.
Bibliography Includes bibliographical references and index.
Summary Annotation The current trend for business telecommunications is to Internet protocol telephony, which integrates voice, video and data traffic. This new book offers guidance to those who have the responsibility to manage, design, and upgrade data networks to carry IP telephony. The book describes the IP-Centrex option of having the telephone company take responsibility for the service delivery.
Local Note eBooks on EBSCOhost EBSCO eBook Subscription Academic Collection - North America
Subject Internet telephony.
Centrex telephone service.
Genre/Form Electronic books.
Added Author Lollo, Mauro.
Other Form: Print version: Abrahams, John R. Centrex or PBX. Boston : Artech House, ©2003 158053497X (DLC) 2002044068 (OCoLC)51271045
ISBN 1580536220 (electronic bk.)
9781580536226 (electronic bk.)
9781580534970 (alk. paper)
158053497X (alk. paper)