02526nam 2200613 450 991045606990332120200520144314.01-58053-622-0(CKB)111086906325800(EBL)227645(OCoLC)53275407(SSID)ssj0000119353(PQKBManifestationID)11132323(PQKBTitleCode)TC0000119353(PQKBWorkID)10058046(PQKB)10279125(MiAaPQ)EBC227645(Au-PeEL)EBL227645(CaPaEBR)ebr10081917(CaBNVSL)mat09100600(IEEE)9100600(EXLCZ)9911108690632580020200729d2003 uy engur|n|---|||||txtccrCentrex or PBX the impact of IP /John R. Abrahams, Mauro LolloBoston :Artech House,©2003.[Piscataqay, New Jersey] :IEEE Xplore,[2003]1 online resource (174 p.)Artech House telecommunications libraryDescription based upon print version of record.1-58053-497-X 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 serviceElectronic books.Internet telephony.Centrex telephone service.621.382/12Abrahams John R.933057Lollo Mauro933058CaBNVSLCaBNVSLCaBNVSLBOOK9910456069903321Centrex or PBX2100102UNINA