LEADER 04864nam 2200637Ia 450 001 9910780785503321 005 20200520144314.0 010 $a1-282-24538-4 010 $a1-84719-681-0 035 $a(CKB)2430000000040713 035 $a(EBL)956352 035 $a(OCoLC)712628887 035 $a(SSID)ssj0000404150 035 $a(PQKBManifestationID)11260681 035 $a(PQKBTitleCode)TC0000404150 035 $a(PQKBWorkID)10344647 035 $a(PQKB)10144381 035 $a(MiAaPQ)EBC956352 035 $a(Au-PeEL)EBL956352 035 $a(CaPaEBR)ebr10433569 035 $a(CaONFJC)MIL224538 035 $a(PPN)228038022 035 $a(EXLCZ)992430000000040713 100 $a20091012d2009 uy 0 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt 182 $cc 183 $acr 200 10$aBuilding enterprise ready telephony systems with sipXecs 4.0$b[electronic resource] $eleveraging open source VoIP for a rock-solid communications system /$fMichael W. Picher 210 $aBirmingham, U.K. $cPackt Publishing$d2009 215 $a1 online resource (445 p.) 225 1 $aFrom technologies to solutions 300 $aIncludes index. 311 $a1-84719-680-2 327 $aBuilding Enterprise-Ready Telephony Systems with sipXecs 4.0; Building Enterprise-Ready Telephony Systems with sipXecs 4.0; Credits; About the Author; About the Reviewer; Preface; What this book covers; What you need for this book; Who this book is for; Conventions; Reader feedback; Customer support; Errata; Piracy; Questions; 1. Introduction to Telephony Concepts and sipXecs; Traditional phone system concepts; Telecommunications provider interface; Telephones on a traditional phone system; Voicemail systems; Call routing logic; Calling functions and features; Call hold; Call park orbits 327 $aCall pickupCall transfer; Call forwarding; Speed dial; Direct Station Selection/Busy Lamp Field; Hunt groups; Automatic Call Distribution; Dial plans; Intercom; Paging; Conferencing; sipX Enterprise Communications System overview; The iPBX; Gateways; Telephones; sipXecs features; Voicemail; Auto Attendant; Music on Hold; Call park orbits; Page groups; Intercom; Conference server; Automatic call distribution; Device management; User management; User self-service portal; Time-based call forwarding; Localization; Internet calling and NAT traversal; Call detail records; Clustering; Summary 327 $a2. System Planning and Equipment SelectionSystem planning; Information gathering; Existing telecommunications connectivity; Demarcation point; Existing users and phones; Existing call flow; Day call flow example; Night call flow example; Departmental call flow example; Existing auto attendants; Existing hunt groups; Existing ACD queues; Special considerations; Paging; Cordless phones; Existing computer network; Equipment selection; Network equipment; Network switch connectivity; Quality of service; Virtual Local Area Network support; Powering the phones; Gigabit switches 327 $aUtilizing existing network equipmentServers; Gateways; Analog gateways; Digital gateways; Phones; Hard phones; Softphones; Wireless phones; SIP firewalls; Uninterruptable power supplies; Plan the installation; Extension planning; Users and phones; Define permissions for user groups; Call flow; Auto attendants; Hunt groups; ACD queues; Network planning; Physical network; Virtual network; Site preparations; Document additional network information; Summary; 3. Installing sipXecs; Complete cabling requirements; Complete network requirements; Installing sipXecs; High availability installation 327 $aInstall and configure the distributed serverVerify DNS and DHCP operation; Single PBX testing; High availability PBX testing; Summary; 4. Configuring Users; Creating users; Extension pool; Internal extension length; Adding a user; Importing users; User groups; Advanced user configuration; Phantom users; Voicemail-only mailbox; Call routing phantom; Call routing phantom example; Summary; 5. Configuring Phones in sipXecs; Types of phones; Managed phones; Unmanaged phones; Phone groups; Phone firmware; Advanced phone configuration; Multiple lines on a phone; Multiple phones for a user 327 $aMultiple line appearances on a phone 330 $aLeveraging open source VOIP for a rock-solid communications system 410 0$aFrom technologies to solutions. 606 $aInternet telephony 606 $aTelephone systems 615 0$aInternet telephony. 615 0$aTelephone systems. 676 $a004.695 700 $aPicher$b Michael W$01535116 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9910780785503321 996 $aBuilding enterprise ready telephony systems with sipXecs 4.0$93783097 997 $aUNINA LEADER 01730nam0 22003853i 450 001 VAN0262127 005 20231214093024.30 017 70$2N$a9783540395287 100 $a20230728d1982 |0itac50 ba 101 $aeng 102 $aDE 105 $a|||| ||||| 200 1 $aGroup Actions and Vector Fields$eProceedings of a Polish-North American Seminar Held at the University of British Columbia, January 15 - February 15, 1981$fedited by James B. Carrell 210 $aBerlin$cSpringer$d1982 215 $av, 146 p.$d24 cm 461 1$1001VAN0102250$12001 $aLecture notes in mathematics$1210 $aBerlin [etc.]$cSpringer$v956 606 $a14-XX$xAlgebraic geometry [MSC 2020]$3VANC019702$2MF 606 $a00Bxx$xConference proceedings and collections of articles [MSC 2020]$3VANC021742$2MF 606 $a32-XX$xSeveral complex variables and analytic spaces [MSC 2020]$3VANC024999$2MF 610 $aFields$9KW:K 610 $aGroup operations$9KW:K 610 $aGroups$9KW:K 610 $aVector$9KW:K 610 $aVector fields$9KW:K 620 $dBerlin$3VANL000066 702 1$aCarrell$bJames B.$3VANV094751 712 $aSpringer $3VANV108073$4650 801 $aIT$bSOL$c20240614$gRICA 856 4 $uhttps://doi.org/10.1007/BFb0101503$zE-book ? 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