02529nam 2200637Ia 450 991095636360332120200520144314.097815805362261580536220(CKB)111086906325800(EBL)227645(OCoLC)53275407(SSID)ssj0000119353(PQKBManifestationID)11132323(PQKBTitleCode)TC0000119353(PQKBWorkID)10058046(PQKB)10279125(Au-PeEL)EBL227645(CaPaEBR)ebr10081917(CaBNVSL)mat09100600(IEEE)9100600(MiAaPQ)EBC227645(Perlego)4663813(EXLCZ)9911108690632580020021230d2003 uy 0engur|n|---|||||txtccrCentrex or PBX the impact of IP /John R. Abrahams, Mauro Lollo1st ed.Boston Artech Housec20031 online resource (174 p.)Artech House telecommunications libraryDescription based upon print version of record.9781580534970 158053497X Includes bibliographical references and index.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 --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.Artech House telecommunications library.Internet telephonyCentrex telephone serviceInternet telephony.Centrex telephone service.621.382/12Abrahams John R1809255Lollo Mauro1809256MiAaPQMiAaPQMiAaPQBOOK9910956363603321Centrex or PBX4359956UNINA