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MARC Lista (tabellare)
Asterisk 1.4 [[electronic resource] ] : the professional's guide : implementing, administering, and consulting on commercial IP telephony solutions / / Colman Carpenter ... [et al.]
Asterisk 1.4 [[electronic resource] ] : the professional's guide : implementing, administering, and consulting on commercial IP telephony solutions / / Colman Carpenter ... [et al.]
Autore Carpenter Colman
Pubbl/distr/stampa Birmingham, U.K., : Packt Publishing Ltd., c2009
Descrizione fisica vii, 262 p. : ill
Disciplina 004.69/5
Collana From technologies to solutions
Soggetto topico Internet telephony
Soggetto genere / forma Electronic books.
ISBN 1-282-25738-2
9786612257384
1-84719-439-7
Formato Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione eng
Record Nr. UNINA-9910455590603321
Carpenter Colman  
Birmingham, U.K., : Packt Publishing Ltd., c2009
Materiale a stampa
Lo trovi qui: Univ. Federico II
Opac: Controlla la disponibilità qui
Asterisk 1.4 [[electronic resource] ] : the professional's guide : implementing, administering, and consulting on commercial IP telephony solutions / / Colman Carpenter ... [et al.]
Asterisk 1.4 [[electronic resource] ] : the professional's guide : implementing, administering, and consulting on commercial IP telephony solutions / / Colman Carpenter ... [et al.]
Autore Carpenter Colman
Pubbl/distr/stampa Birmingham, U.K., : Packt Publishing Ltd., c2009
Descrizione fisica vii, 262 p. : ill
Disciplina 004.69/5
Collana From technologies to solutions
Soggetto topico Internet telephony
ISBN 1-282-25738-2
9786612257384
1-84719-439-7
Formato Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione eng
Record Nr. UNINA-9910780405503321
Carpenter Colman  
Birmingham, U.K., : Packt Publishing Ltd., c2009
Materiale a stampa
Lo trovi qui: Univ. Federico II
Opac: Controlla la disponibilità qui
Asterisk 1.4 : the professional's guide : implementing, administering, and consulting on commercial IP telephony solutions / / Colman Carpenter ... [et al.]
Asterisk 1.4 : the professional's guide : implementing, administering, and consulting on commercial IP telephony solutions / / Colman Carpenter ... [et al.]
Autore Carpenter Colman
Edizione [1st ed.]
Pubbl/distr/stampa Birmingham, U.K., : Packt Publishing Ltd., c2009
Descrizione fisica vii, 262 p. : ill
Disciplina 004.69/5
Collana From technologies to solutions
Soggetto topico Internet telephony
ISBN 1-282-25738-2
9786612257384
1-84719-439-7
Formato Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione eng
Nota di contenuto Intro -- Asterisk 1.4 -- Table of Contents -- Asterisk 1.4 -- Credits -- Foreword -- About the Authors -- About the Reviewers -- Preface -- Reviewing the basics -- No compromise -- What this book covers -- Onwards -- Conventions -- Reader feedback -- Customer support -- Downloading the example code for the book -- Errata -- Piracy -- Questions -- 1. The Dialplan -- Dialplan location -- Extensions and contexts -- Pattern matching -- Why use contexts? -- Call barring made simple -- Time and day call routing -- Variables -- Inheritance of channel variables through the dialplan -- Using the AstDB -- Dialplan features and additions -- func_devstate -- What can we use the DEVSTATE() function for? -- Outgoing trunk selection -- Calling extensions -- Setting lights -- Boosting outgoing call capacity -- Using multiple broadband lines -- Configuration overview -- Setting up the routing in Linux -- Configuring Asterisk -- Explanation of the macro -- Downsides -- System() application -- Summary -- 2. Network Considerations when Implementing Asterisk -- Centralized and distributed installations -- Centralized installations -- Distributed solutions -- Latency and jitter -- Jitterbuffer -- Echo -- Do your homework -- SLAs are for everyone -- Achieving the goal -- Backups -- To share or not to share -- Ensuring quality -- When things go wrong -- Red -- Amber -- Green -- Increasing resilience -- Summary -- 3. Call Routing with Asterisk -- Routing methods -- Where to start -- Internal calls -- Local calls -- National calls -- International calls -- Alternative options -- ENUM -- DUNDi -- Types of routing -- Routing techniques -- Summary -- 4. Call Centers-Queues and Recording -- Asterisk queues -- Queue gotchas -- A practical queue -- Using queues to cascade calls -- Call recording-the issues -- Show-stoppers -- VoIP recording approaches.
Impact of VoIP on recording systems -- Hardware convergence -- Distributed call centers -- Home working -- VoIP recording challenges -- Routing -- Bandwidth -- Encryption -- Solutions -- Asterisk call center solutions -- How VICIDIAL works -- Handling inbound calls -- Installation -- Timing sources -- Scalability -- Summary -- 5. Asterisk and Speech Technology -- Why speech-enable? -- Types of speech technologies -- Automatic Speech Recognition (ASR) -- Isolated Word Recognition -- Connected Word Recognition -- Natural Language Recognition -- Text-to-Speech (TTS) -- Speaker Verification and Identification (SVI) -- MRCP -- Implementation considerations -- ASR and Asterisk -- Installing LumenVox speech recognition with Asterisk -- Checking that things are working -- SpeechCreate() -- SpeechLoadGrammar (yesno,/etc/lumenvox/Lang/BuiltinGrammars/ABNFBoolean.gram) -- SpeechActivateGrammar(yesno) -- SpeechBackground(beep) -- Verbose(1,Result was {SPEECH_TEXT(0)}) -- Verbose(1,Confidence was {SPEECH_SCORE(0)}) -- SpeechStart() -- SpeechDeactivateGrammar(label) -- SpeechUnloadGrammar(label) -- SpeechDestroy() -- {SPEECH(results)} -- Grammar files -- Implementation advice for ASR -- TTS with Asterisk -- Implementation advice for TTS -- Summary -- 6. Call Accounting and Billing -- Call Data Records (CDRs) -- CDR frontends -- Call accounting -- Providing termination billing -- Every little helps -- Selecting a billing platform -- Introducing A2Billing -- Reasons to consider A2Billing -- A2Billing requirements -- Monitoring usage -- Coding for A2Billing -- Billing gotcha! -- High call volumes -- Other high-call-volume solutions -- SER/OpenSER -- FreeSWITCH -- Summary -- 7. Resilience and Stability -- Increasing availability -- Stability -- Network -- Cables -- Switches and routers -- Endpoints -- Telephony switches and gateways -- Server -- Environment.
Dealing with failure -- Network resilience -- Server -- High availability -- Ultra Monkey -- Telephony switches/gateways -- Redfone foneBRIDGE2 -- Junghanns ISDNguard -- Endpoints -- Round robin DNS -- Say hello to Rsync -- Limiting the number of calls per server -- Summary -- 8. Localization and Practical Security -- Tones -- Time and date and localization -- Changing the language of system prompts -- Local telephony interfaces -- Analog -- Digital -- Localizing caller ID signaling on Digium analog interfaces -- Checklist -- Practical security -- Out of hours -- Summary -- 9. Interfacing with Traditional Analog and Digital Telephony -- Analog -- Digital -- ISDN BRI (Basic Rate Interface) -- ISDN PRI (Primary Rate Interface) -- Choices, choices -- Using external adaptors -- Using cards -- Installing a Digium card -- Card installation-physical -- Installing the DAHDI software -- Configuring the DAHDI files to enable the card -- What about the other cards? -- framing -- coding -- Troubleshooting with Digium cards -- Summary -- 10. Integrating Asterisk with Wireless Technologies -- Why integrate Asterisk with wireless technologies? -- Wireless technology overview -- Wi-Fi (only) phones -- SIP desk phones with a wireless link -- Dual-mode (GSM and SIP) phones and PDA/smart phones -- SIP/DECT phones -- Connecting Asterisk to mobile networks -- Why connect to mobile networks? -- The GSM gateway (box) -- The GSM card -- Configuring wireless devices -- Configuring Asterisk to work with wireless technologies -- Deployment choices -- Neat money saving tricks -- Calling a mobile phone -- Avoiding those nasty roaming charges that arise from receiving calls -- Summary -- 11. Graphical User Interfaces -- Reasons for going GUI -- Good to GUI -- Ease of administration -- Access to enhanced features -- Easier upgrade process -- Standardized code -- GUI, phooey!.
Performance -- Stability -- Restricted functions -- FreePBX -- How it works -- Installation -- Configuration -- Extensions -- Inbound routes -- Outbound routes -- Trunks -- Other records -- Summary -- A. Selling Your Solution -- In the beginning ... -- Drivers for changing phone systems -- A word on cost -- Generating interest -- Alliances -- Advertising -- Search engines -- Become an expert -- Relationship marketing -- Email as a marketing tool -- Tracking prospects -- Converting the prospect into a sale -- Determining your customer's hardware requirements -- Choosing the right phones -- Tales of woe -- Aastra -- Linksys -- Siemens Gigaset IP DECT phones -- Snom M3 -- Remote support -- Make it secure -- Do's and don'ts -- The do's -- First impressions -- Get brochures printed -- Take notes -- Send the quote in a timely manner -- Follow up the quote -- Target the decision makers, but don't ignore IT -- The don'ts -- You don't need a fancy office -- Don't cut corners on the solution -- Don't under price -- Don't have a huge margin on handsets -- Don't supply a PC as the phone server -- Summary -- B. Sample Email Content -- What is VoIP? -- Why should I consider VoIP? -- Cost savings -- Call costs -- Line rental costs -- Wiring costs -- Reduced infrastructure costs -- Centralized management -- System integration -- Unified messaging -- Reliability -- Closed and open systems -- Superior sound -- Fallback solutions -- Broadcasting calls -- A number for life -- Number porting -- Local numbers -- About XYZ -- Our philosophy -- Our passion -- C. Sample Appointment Sheet -- Index.
Record Nr. UNINA-9910811216203321
Carpenter Colman  
Birmingham, U.K., : Packt Publishing Ltd., c2009
Materiale a stampa
Lo trovi qui: Univ. Federico II
Opac: Controlla la disponibilità qui
CCNA voice [[electronic resource] ] : study guide / / Andrew Froehlich
CCNA voice [[electronic resource] ] : study guide / / Andrew Froehlich
Autore Froehlich Andrew <1977->
Edizione [1st ed.]
Pubbl/distr/stampa Indianapolis, Ind., : Wiley Technology, c2010
Descrizione fisica 1 online resource (655 p.)
Disciplina 004.69/5
Collana Sybex serious skills CCNA voice study guide
Soggetto topico Internet telephony - Examinations
Telecommunication
Soggetto genere / forma Electronic books.
ISBN 1-282-54808-5
9786612548086
0-470-63113-9
Formato Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione eng
Nota di contenuto CCNA Voice Study Guide (IIUC 640-460); Acknowledgments; About the Author; Contents at a Glance; Contents; Introduction; Assessment Test; Answers to Assessment Test; Chapter 1: Cisco Unified Communication Solutions; Why Should We Bother Integrating Voice and Data Services?; Introducing the Cisco Unified Communications Manager Lineup; Introducing the Cisco Unity Lineup; Introducing Cisco IP Phones and User Applications; Using Voice Gateways; Introducing the Cisco Unified Communications 500 Series; Choosing an IP Telephony Deployment Option; Summary; Exam Essentials; Written Lab 1.1
Review QuestionsAnswers to Review Questions; Answers to Written Lab 1.1; Chapter 2: Traditional Telephony; Understanding Analog Network Signaling; Comparing Analog and Digital Circuits; Multiplexing; Private Phone Switching; PSTN Numbering Plans; Summary; Exam Essentials; Written Lab 2.1; Review Questions; Answers to Review Questions; Answers to Written Lab 2.1; Chapter 3: Voice over IP (VoIP); Understanding the Unified Communications Model; A Closer Look at Voice Gateways; An Overview of Voice and Video Transport Protocols; Comparing VoIP Endpoint Signaling Protocols
Comparing the Common Voice CodecsCalculating IP Voice Packet Sizes; Summary; Exam Essentials; Written Lab 3.1; Review Questions; Answers to Review Questions; Answers to Written Lab 3.1; Chapter 4: Configuring the Network Infrastructure for Voice; Power Options for IP Phones; Understanding and Configuring VLANs and Voice VLANs; Introduction to Quality of Service (QoS); Configuring Other Link Efficiency Techniques; Network Infrastructure Services for VoIP support; Summary; Exam Essentials; Written Lab 4.1; Hands-on Labs; Review Questions; Answers to Review Questions; Answers to Written Lab 4.1
Chapter 5: CUCM Express Installation and Basic ConfigurationUnderstanding CUCM Express Licensing; Cisco Voice IOS and CUCM Express Software Installation; Initial CUCM Express Configuration; Basic Configuration Using the Telephony Service Setup Script; Basic Configuration Using the GUI; Using CUCM Express Verification and Troubleshooting Commands; Summary; Exam Essentials; Written Lab 5.1; Hands-on Labs; Review Questions; Answers to Review Questions; Answers to Written Lab 1; Chapter 6: CUCM Express Advanced Configuration; Configuring Key System and PBX DN s and Ephones
Configuring Telephony Service FeaturesConfiguring Voice Productivity Features; Configuring Voice Access and Accounting Features on the CUCM Express; Configuring Music on Hold (MoH); Summary; Exam Essentials; Written Lab 6.1; Hands-on Labs; Review Questions; Answers to Review Questions; Answers to Written Lab 6.1; Chapter 7: Configuring Voice Gateways for POTS and VoIP; Configuring Analog FXS and FXO Ports with Basic Dial Peers; Configuring Digital T1 Ports; Configuring VoIP Dial Peers over WAN Connections; Dial-Plan Strategy; Understanding the Dial-Peer Decision-Making Process
Dial-Peer Digit Manipulation
Record Nr. UNINA-9910459231903321
Froehlich Andrew <1977->  
Indianapolis, Ind., : Wiley Technology, c2010
Materiale a stampa
Lo trovi qui: Univ. Federico II
Opac: Controlla la disponibilità qui
CCNA voice [[electronic resource] ] : study guide / / Andrew Froehlich
CCNA voice [[electronic resource] ] : study guide / / Andrew Froehlich
Autore Froehlich Andrew <1977->
Edizione [1st ed.]
Pubbl/distr/stampa Indianapolis, Ind., : Wiley Technology, c2010
Descrizione fisica 1 online resource (655 p.)
Disciplina 004.69/5
Collana Sybex serious skills CCNA voice study guide
Soggetto topico Internet telephony - Examinations
Telecommunication
ISBN 0-470-63116-3
1-282-54808-5
9786612548086
0-470-63113-9
Formato Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione eng
Nota di contenuto CCNA Voice Study Guide (IIUC 640-460); Acknowledgments; About the Author; Contents at a Glance; Contents; Introduction; Assessment Test; Answers to Assessment Test; Chapter 1: Cisco Unified Communication Solutions; Why Should We Bother Integrating Voice and Data Services?; Introducing the Cisco Unified Communications Manager Lineup; Introducing the Cisco Unity Lineup; Introducing Cisco IP Phones and User Applications; Using Voice Gateways; Introducing the Cisco Unified Communications 500 Series; Choosing an IP Telephony Deployment Option; Summary; Exam Essentials; Written Lab 1.1
Review QuestionsAnswers to Review Questions; Answers to Written Lab 1.1; Chapter 2: Traditional Telephony; Understanding Analog Network Signaling; Comparing Analog and Digital Circuits; Multiplexing; Private Phone Switching; PSTN Numbering Plans; Summary; Exam Essentials; Written Lab 2.1; Review Questions; Answers to Review Questions; Answers to Written Lab 2.1; Chapter 3: Voice over IP (VoIP); Understanding the Unified Communications Model; A Closer Look at Voice Gateways; An Overview of Voice and Video Transport Protocols; Comparing VoIP Endpoint Signaling Protocols
Comparing the Common Voice CodecsCalculating IP Voice Packet Sizes; Summary; Exam Essentials; Written Lab 3.1; Review Questions; Answers to Review Questions; Answers to Written Lab 3.1; Chapter 4: Configuring the Network Infrastructure for Voice; Power Options for IP Phones; Understanding and Configuring VLANs and Voice VLANs; Introduction to Quality of Service (QoS); Configuring Other Link Efficiency Techniques; Network Infrastructure Services for VoIP support; Summary; Exam Essentials; Written Lab 4.1; Hands-on Labs; Review Questions; Answers to Review Questions; Answers to Written Lab 4.1
Chapter 5: CUCM Express Installation and Basic ConfigurationUnderstanding CUCM Express Licensing; Cisco Voice IOS and CUCM Express Software Installation; Initial CUCM Express Configuration; Basic Configuration Using the Telephony Service Setup Script; Basic Configuration Using the GUI; Using CUCM Express Verification and Troubleshooting Commands; Summary; Exam Essentials; Written Lab 5.1; Hands-on Labs; Review Questions; Answers to Review Questions; Answers to Written Lab 1; Chapter 6: CUCM Express Advanced Configuration; Configuring Key System and PBX DN s and Ephones
Configuring Telephony Service FeaturesConfiguring Voice Productivity Features; Configuring Voice Access and Accounting Features on the CUCM Express; Configuring Music on Hold (MoH); Summary; Exam Essentials; Written Lab 6.1; Hands-on Labs; Review Questions; Answers to Review Questions; Answers to Written Lab 6.1; Chapter 7: Configuring Voice Gateways for POTS and VoIP; Configuring Analog FXS and FXO Ports with Basic Dial Peers; Configuring Digital T1 Ports; Configuring VoIP Dial Peers over WAN Connections; Dial-Plan Strategy; Understanding the Dial-Peer Decision-Making Process
Dial-Peer Digit Manipulation
Record Nr. UNINA-9910792460503321
Froehlich Andrew <1977->  
Indianapolis, Ind., : Wiley Technology, c2010
Materiale a stampa
Lo trovi qui: Univ. Federico II
Opac: Controlla la disponibilità qui
CCNA voice : study guide / / Andrew Froehlich
CCNA voice : study guide / / Andrew Froehlich
Autore Froehlich Andrew <1977->
Edizione [1st ed.]
Pubbl/distr/stampa Indianapolis, Ind., : Wiley Technology, c2010
Descrizione fisica 1 online resource (655 p.)
Disciplina 004.69/5
Collana Sybex serious skills CCNA voice study guide
Soggetto topico Internet telephony - Examinations
Telecommunication
ISBN 0-470-63116-3
1-282-54808-5
9786612548086
0-470-63113-9
Formato Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione eng
Nota di contenuto CCNA Voice Study Guide (IIUC 640-460); Acknowledgments; About the Author; Contents at a Glance; Contents; Introduction; Assessment Test; Answers to Assessment Test; Chapter 1: Cisco Unified Communication Solutions; Why Should We Bother Integrating Voice and Data Services?; Introducing the Cisco Unified Communications Manager Lineup; Introducing the Cisco Unity Lineup; Introducing Cisco IP Phones and User Applications; Using Voice Gateways; Introducing the Cisco Unified Communications 500 Series; Choosing an IP Telephony Deployment Option; Summary; Exam Essentials; Written Lab 1.1
Review QuestionsAnswers to Review Questions; Answers to Written Lab 1.1; Chapter 2: Traditional Telephony; Understanding Analog Network Signaling; Comparing Analog and Digital Circuits; Multiplexing; Private Phone Switching; PSTN Numbering Plans; Summary; Exam Essentials; Written Lab 2.1; Review Questions; Answers to Review Questions; Answers to Written Lab 2.1; Chapter 3: Voice over IP (VoIP); Understanding the Unified Communications Model; A Closer Look at Voice Gateways; An Overview of Voice and Video Transport Protocols; Comparing VoIP Endpoint Signaling Protocols
Comparing the Common Voice CodecsCalculating IP Voice Packet Sizes; Summary; Exam Essentials; Written Lab 3.1; Review Questions; Answers to Review Questions; Answers to Written Lab 3.1; Chapter 4: Configuring the Network Infrastructure for Voice; Power Options for IP Phones; Understanding and Configuring VLANs and Voice VLANs; Introduction to Quality of Service (QoS); Configuring Other Link Efficiency Techniques; Network Infrastructure Services for VoIP support; Summary; Exam Essentials; Written Lab 4.1; Hands-on Labs; Review Questions; Answers to Review Questions; Answers to Written Lab 4.1
Chapter 5: CUCM Express Installation and Basic ConfigurationUnderstanding CUCM Express Licensing; Cisco Voice IOS and CUCM Express Software Installation; Initial CUCM Express Configuration; Basic Configuration Using the Telephony Service Setup Script; Basic Configuration Using the GUI; Using CUCM Express Verification and Troubleshooting Commands; Summary; Exam Essentials; Written Lab 5.1; Hands-on Labs; Review Questions; Answers to Review Questions; Answers to Written Lab 1; Chapter 6: CUCM Express Advanced Configuration; Configuring Key System and PBX DN s and Ephones
Configuring Telephony Service FeaturesConfiguring Voice Productivity Features; Configuring Voice Access and Accounting Features on the CUCM Express; Configuring Music on Hold (MoH); Summary; Exam Essentials; Written Lab 6.1; Hands-on Labs; Review Questions; Answers to Review Questions; Answers to Written Lab 6.1; Chapter 7: Configuring Voice Gateways for POTS and VoIP; Configuring Analog FXS and FXO Ports with Basic Dial Peers; Configuring Digital T1 Ports; Configuring VoIP Dial Peers over WAN Connections; Dial-Plan Strategy; Understanding the Dial-Peer Decision-Making Process
Dial-Peer Digit Manipulation
Record Nr. UNINA-9910821607703321
Froehlich Andrew <1977->  
Indianapolis, Ind., : Wiley Technology, c2010
Materiale a stampa
Lo trovi qui: Univ. Federico II
Opac: Controlla la disponibilità qui
Inter-asterisk exchange (IAX) deployment scenarios in SIP-enabled networks / / Mohamed Boucadair
Inter-asterisk exchange (IAX) deployment scenarios in SIP-enabled networks / / Mohamed Boucadair
Autore Boucadair Mohamed
Pubbl/distr/stampa Chichester, U.K. : , : Wiley, , 2009
Descrizione fisica 1 online resource (275 p.)
Disciplina 004.69/5
004.695
Collana Wiley series on communications networking & distributed systems
Soggetto topico Internet telephony
Computer network protocols
ISBN 1-282-01079-4
9786612010798
0-470-74218-6
0-470-74219-4
Formato Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione eng
Nota di contenuto Foreword -- Terminology and Definitions -- Acronyms and Abbreviations -- Acknowledgement -- 1 Introduction -- 1.1 General Introduction -- 1.2 On Voice over IP and Telephony over IP -- 1.3 Context -- 1.4 Enhancement Strategies to Solve SIP Issues -- 1.5 IAX: Towards Lightweight Telephony Architectures -- 1.6 IAX and Standardisation -- 1.7 Rationale -- 1.8 What This Book is Not -- 1.9 Structure of the Book -- 2 The IAX Protocol at a Glance -- 2.1 What Does IAX Stand For? -- 2.2 Is IAX Specific to the Asterisk Platform? -- 2.3 What is the Difference between IAX2 and IAX? -- 2.4 Why another New VoIP Protocol? -- 2.5 How Does IAX Solve VoIP Pains? -- 2.6 How is Calls Multiplexing Achieved? -- 2.7 And What About Demultiplexing? -- 2.8 What Port Number Does IAX Use? -- 2.9 What Transport Protocol Does IAX Use? -- 2.10 Is IAX a Reliable Protocol? -- 2.11 How Does IAX Ensure Reliability? -- 2.12 Is there an IAX Registration Procedure? -- 2.13 Does IAX Registration Differ from SIP Registration? -- 2.14 How Are Media Streams Transported in IAX? -- 2.15 Is CODEC Negotiation Supported by IAX? -- 2.16 Is On-Fly CODEC Change Possible During a Call? -- 2.17 IAX: a Path-Coupled or Decoupled Protocol? -- 2.18 Can IAX be Aware of the Status of the Network Load? -- 2.19 What About Security? -- 2.20 Could IAX Devices Be Managed? -- 2.21 Is Firmware Version Updating Supported by IAX? -- 2.22 Can IAX Be Extended to Offer New Features? -- 2.23 How is an IAX Resource Identified? -- 2.24 What Does an IAX URI Look Like? -- 2.25 Is it Possible to Set a Call Involving Several IAX Servers? -- 2.26 Is it Possible to Discover the Location of an IAX Resource? -- 2.27 What Is DUNDi? -- 2.28 What Is TRIP? -- 2.29 What Is ENUM? -- References -- Further Reading -- Part One: IAX Protocol Specifications -- 3 IAX Uniform Resource Identifier -- 3.1 Introduction -- 3.2 Format of IAX Uniform Resource Identifiers -- 3.3 Examples of IAX Uniform Resource Identifiers -- 3.4 Comparing IAX Uniform Resource Identifiers.
3.5 IAX Uniform Resource Identifiers and ENUM -- References -- Further Reading -- 4 IAX Frames -- 4.1 Introduction -- 4.2 Full Frames -- 4.3 Mini Frames -- 4.4 Meta Frames -- 4.5 Encrypted Frames -- 4.6 Conclusion -- References -- Further Reading -- 5 IAX Information Elements -- 5.1 Introduction -- 5.2 List of IAX Information Elements -- 5.3 Example of IAX Information Element Traces -- References -- Further Reading -- 6 IAX Messages -- 6.1 Introduction -- 6.2 Taxonomy of IAX Messages -- 6.3 IAX Requests/Responses -- 6.4 IAX Functional Categories -- 6.5 IAX Media Frames -- 6.6 IAX Reliable/Unreliable Messages -- References -- Further Reading -- 7 IAX Connectivity Considerations -- 7.1 Introduction -- 7.2 IAX Transport Protocol -- 7.3 IAX Port Number -- 7.4 IAX Call Multiplexing and Demultiplexing -- 7.5 IAX Reliability Mechanism -- 7.6 Authentication and Encryption -- 7.7 Conclusion -- References -- Further Reading -- 8 IAX Operations -- 8.1 Introduction -- 8.2 Provisioning and Firmware Download -- 8.3 Registration -- 8.4 Call Setup -- 8.5 Call Tear-Down -- 8.6 Call Monitoring -- 8.7 Call Optimisation -- 8.8 Conclusion -- References -- Further Reading -- Part Two: Discussion and Analysis -- 9 IAX and Advanced Services -- 9.1 Introduction -- 9.2 CODEC Negotiation -- 9.3 Video Sessions -- 9.4 Negotiation of Several Media Types in the Same IAX Session -- 9.5 Presence Services -- 9.6 Instant Messaging -- 9.7 Topology Hiding -- 9.8 Mobility -- 9.9 Miscellaneous -- 9.10 Conclusion -- References -- Further Reading -- 10 Multi-IAX Servers Environment -- 10.1 Introduction -- 10.2 Focus -- 10.3 Discovery of IAX Resources -- 10.4 Setting End-to-End Calls -- 10.5 Load Balancing -- 10.6 Path-Coupled and Path-Decoupled Discussion -- 10.7 Forking -- 10.8 Route Symmetry -- 10.9 Conclusion -- References -- 11 IAX and NAT Traversal -- 11.1 Introduction -- 11.2 Structure -- 11.3 NAT Types -- 11.4 IAX and NAT Traversal Discussion -- 11.5 Operational Considerations -- 11.6 Conclusion -- References.
Further Reading -- 12 IAX and Peer-to-Peer Deployment Scenarios -- 12.1 Introduction -- 12.2 Scope -- 12.3 A P2P Solution for Corporate Customers -- 12.4 Conclusion -- References -- Further Reading -- 13 IAX and IPv6 -- 13.1 Introduction -- 13.2 Context and Assumptions -- 13.3 Service Migration to IPv6 -- 13.4 Structure -- 13.5 The IP Address Exhaustion Problem -- 13.6 IPv6: a Long-Term Solution -- 13.7 Why IPv6 May Be Problematic for Telephony Signalling Protocols: the SIP Example -- 13.8 IAX: an IP Version-Agnostic Protocol? -- 13.9 Deployment of IAX Services in a 'Pure' IPv6 Environment -- 13.10 Heterogeneous Environment -- 13.11 Conclusion -- References -- Further Reading -- 14 IAX: Towards a Lightweight SBC? -- 14.1 Introduction -- 14.2 IP Telephony Administrative Domain -- 14.3 Deployment Scenarios -- 14.4 Deployment Contexts -- 14.5 Service Limitations Caused by SBCs -- 14.6 Functional Decomposition -- 14.7 Taxonomy of SBC Functions in an SIP Environment -- 14.8 Validity of these Functions in an IAX Architecture -- 14.9 Conclusion -- References -- Further Reading -- Part Three: Deployment Scenarios in SIP-Based Environments -- 15 Scenarios for the Deployment of IAX-Based Conversational Services -- 15.1 SIP Complications -- 15.2 Structure -- 15.3 Beyond the 'SIP-Centric' Era -- 15.4 Methodology -- 15.5 Overall Context -- 15.6 Architectural Requirements -- 15.7 Brief Comparison -- 15.8 Taxonomy -- 15.9 Introducing IAX into Operational Networks -- 15.10 Conclusion. / -- References -- 16 IAX in the Access Segment of SIP-Based Service Architectures -- 16.1 Introduction -- 16.2 A 'High-Level' Description of the Interworking Function -- 16.3 Examples of Call Flows -- 16.4 Bandwidth Optimisation: An Extension to SIP -- 16.5 Conclusion -- References -- 17 Validation Scenario -- 17.1 Overview -- 17.2 Configuring Asterisk Servers -- 17.3 Configuring the SIP Express Router (SER) -- 17.4 User Agent Configuration -- 17.5 Conclusion -- Further Reading -- Index.
Record Nr. UNINA-9910145827203321
Boucadair Mohamed  
Chichester, U.K. : , : Wiley, , 2009
Materiale a stampa
Lo trovi qui: Univ. Federico II
Opac: Controlla la disponibilità qui
Inter-asterisk exchange (IAX) deployment scenarios in SIP-enabled networks / / Mohamed Boucadair
Inter-asterisk exchange (IAX) deployment scenarios in SIP-enabled networks / / Mohamed Boucadair
Autore Boucadair Mohamed
Pubbl/distr/stampa Chichester, U.K. : , : Wiley, , 2009
Descrizione fisica 1 online resource (275 p.)
Disciplina 004.69/5
004.695
Collana Wiley series on communications networking & distributed systems
Soggetto topico Internet telephony
Computer network protocols
ISBN 1-282-01079-4
9786612010798
0-470-74218-6
0-470-74219-4
Formato Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione eng
Nota di contenuto Foreword -- Terminology and Definitions -- Acronyms and Abbreviations -- Acknowledgement -- 1 Introduction -- 1.1 General Introduction -- 1.2 On Voice over IP and Telephony over IP -- 1.3 Context -- 1.4 Enhancement Strategies to Solve SIP Issues -- 1.5 IAX: Towards Lightweight Telephony Architectures -- 1.6 IAX and Standardisation -- 1.7 Rationale -- 1.8 What This Book is Not -- 1.9 Structure of the Book -- 2 The IAX Protocol at a Glance -- 2.1 What Does IAX Stand For? -- 2.2 Is IAX Specific to the Asterisk Platform? -- 2.3 What is the Difference between IAX2 and IAX? -- 2.4 Why another New VoIP Protocol? -- 2.5 How Does IAX Solve VoIP Pains? -- 2.6 How is Calls Multiplexing Achieved? -- 2.7 And What About Demultiplexing? -- 2.8 What Port Number Does IAX Use? -- 2.9 What Transport Protocol Does IAX Use? -- 2.10 Is IAX a Reliable Protocol? -- 2.11 How Does IAX Ensure Reliability? -- 2.12 Is there an IAX Registration Procedure? -- 2.13 Does IAX Registration Differ from SIP Registration? -- 2.14 How Are Media Streams Transported in IAX? -- 2.15 Is CODEC Negotiation Supported by IAX? -- 2.16 Is On-Fly CODEC Change Possible During a Call? -- 2.17 IAX: a Path-Coupled or Decoupled Protocol? -- 2.18 Can IAX be Aware of the Status of the Network Load? -- 2.19 What About Security? -- 2.20 Could IAX Devices Be Managed? -- 2.21 Is Firmware Version Updating Supported by IAX? -- 2.22 Can IAX Be Extended to Offer New Features? -- 2.23 How is an IAX Resource Identified? -- 2.24 What Does an IAX URI Look Like? -- 2.25 Is it Possible to Set a Call Involving Several IAX Servers? -- 2.26 Is it Possible to Discover the Location of an IAX Resource? -- 2.27 What Is DUNDi? -- 2.28 What Is TRIP? -- 2.29 What Is ENUM? -- References -- Further Reading -- Part One: IAX Protocol Specifications -- 3 IAX Uniform Resource Identifier -- 3.1 Introduction -- 3.2 Format of IAX Uniform Resource Identifiers -- 3.3 Examples of IAX Uniform Resource Identifiers -- 3.4 Comparing IAX Uniform Resource Identifiers.
3.5 IAX Uniform Resource Identifiers and ENUM -- References -- Further Reading -- 4 IAX Frames -- 4.1 Introduction -- 4.2 Full Frames -- 4.3 Mini Frames -- 4.4 Meta Frames -- 4.5 Encrypted Frames -- 4.6 Conclusion -- References -- Further Reading -- 5 IAX Information Elements -- 5.1 Introduction -- 5.2 List of IAX Information Elements -- 5.3 Example of IAX Information Element Traces -- References -- Further Reading -- 6 IAX Messages -- 6.1 Introduction -- 6.2 Taxonomy of IAX Messages -- 6.3 IAX Requests/Responses -- 6.4 IAX Functional Categories -- 6.5 IAX Media Frames -- 6.6 IAX Reliable/Unreliable Messages -- References -- Further Reading -- 7 IAX Connectivity Considerations -- 7.1 Introduction -- 7.2 IAX Transport Protocol -- 7.3 IAX Port Number -- 7.4 IAX Call Multiplexing and Demultiplexing -- 7.5 IAX Reliability Mechanism -- 7.6 Authentication and Encryption -- 7.7 Conclusion -- References -- Further Reading -- 8 IAX Operations -- 8.1 Introduction -- 8.2 Provisioning and Firmware Download -- 8.3 Registration -- 8.4 Call Setup -- 8.5 Call Tear-Down -- 8.6 Call Monitoring -- 8.7 Call Optimisation -- 8.8 Conclusion -- References -- Further Reading -- Part Two: Discussion and Analysis -- 9 IAX and Advanced Services -- 9.1 Introduction -- 9.2 CODEC Negotiation -- 9.3 Video Sessions -- 9.4 Negotiation of Several Media Types in the Same IAX Session -- 9.5 Presence Services -- 9.6 Instant Messaging -- 9.7 Topology Hiding -- 9.8 Mobility -- 9.9 Miscellaneous -- 9.10 Conclusion -- References -- Further Reading -- 10 Multi-IAX Servers Environment -- 10.1 Introduction -- 10.2 Focus -- 10.3 Discovery of IAX Resources -- 10.4 Setting End-to-End Calls -- 10.5 Load Balancing -- 10.6 Path-Coupled and Path-Decoupled Discussion -- 10.7 Forking -- 10.8 Route Symmetry -- 10.9 Conclusion -- References -- 11 IAX and NAT Traversal -- 11.1 Introduction -- 11.2 Structure -- 11.3 NAT Types -- 11.4 IAX and NAT Traversal Discussion -- 11.5 Operational Considerations -- 11.6 Conclusion -- References.
Further Reading -- 12 IAX and Peer-to-Peer Deployment Scenarios -- 12.1 Introduction -- 12.2 Scope -- 12.3 A P2P Solution for Corporate Customers -- 12.4 Conclusion -- References -- Further Reading -- 13 IAX and IPv6 -- 13.1 Introduction -- 13.2 Context and Assumptions -- 13.3 Service Migration to IPv6 -- 13.4 Structure -- 13.5 The IP Address Exhaustion Problem -- 13.6 IPv6: a Long-Term Solution -- 13.7 Why IPv6 May Be Problematic for Telephony Signalling Protocols: the SIP Example -- 13.8 IAX: an IP Version-Agnostic Protocol? -- 13.9 Deployment of IAX Services in a 'Pure' IPv6 Environment -- 13.10 Heterogeneous Environment -- 13.11 Conclusion -- References -- Further Reading -- 14 IAX: Towards a Lightweight SBC? -- 14.1 Introduction -- 14.2 IP Telephony Administrative Domain -- 14.3 Deployment Scenarios -- 14.4 Deployment Contexts -- 14.5 Service Limitations Caused by SBCs -- 14.6 Functional Decomposition -- 14.7 Taxonomy of SBC Functions in an SIP Environment -- 14.8 Validity of these Functions in an IAX Architecture -- 14.9 Conclusion -- References -- Further Reading -- Part Three: Deployment Scenarios in SIP-Based Environments -- 15 Scenarios for the Deployment of IAX-Based Conversational Services -- 15.1 SIP Complications -- 15.2 Structure -- 15.3 Beyond the 'SIP-Centric' Era -- 15.4 Methodology -- 15.5 Overall Context -- 15.6 Architectural Requirements -- 15.7 Brief Comparison -- 15.8 Taxonomy -- 15.9 Introducing IAX into Operational Networks -- 15.10 Conclusion. / -- References -- 16 IAX in the Access Segment of SIP-Based Service Architectures -- 16.1 Introduction -- 16.2 A 'High-Level' Description of the Interworking Function -- 16.3 Examples of Call Flows -- 16.4 Bandwidth Optimisation: An Extension to SIP -- 16.5 Conclusion -- References -- 17 Validation Scenario -- 17.1 Overview -- 17.2 Configuring Asterisk Servers -- 17.3 Configuring the SIP Express Router (SER) -- 17.4 User Agent Configuration -- 17.5 Conclusion -- Further Reading -- Index.
Record Nr. UNINA-9910830232403321
Boucadair Mohamed  
Chichester, U.K. : , : Wiley, , 2009
Materiale a stampa
Lo trovi qui: Univ. Federico II
Opac: Controlla la disponibilità qui
Inter-asterisk exchange (IAX) deployment scenarios in SIP-enabled networks / / Mohamed Boucadair
Inter-asterisk exchange (IAX) deployment scenarios in SIP-enabled networks / / Mohamed Boucadair
Autore Boucadair Mohamed
Pubbl/distr/stampa Chichester, U.K., : Wiley, 2009
Descrizione fisica 1 online resource (275 p.)
Disciplina 004.69/5
004.695
Collana Wiley series in communications networking & distributed systems
Soggetto topico Internet telephony
Computer network protocols
ISBN 1-282-01079-4
9786612010798
0-470-74218-6
0-470-74219-4
Formato Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione eng
Nota di contenuto Foreword -- Terminology and Definitions -- Acronyms and Abbreviations -- Acknowledgement -- 1 Introduction -- 1.1 General Introduction -- 1.2 On Voice over IP and Telephony over IP -- 1.3 Context -- 1.4 Enhancement Strategies to Solve SIP Issues -- 1.5 IAX: Towards Lightweight Telephony Architectures -- 1.6 IAX and Standardisation -- 1.7 Rationale -- 1.8 What This Book is Not -- 1.9 Structure of the Book -- 2 The IAX Protocol at a Glance -- 2.1 What Does IAX Stand For? -- 2.2 Is IAX Specific to the Asterisk Platform? -- 2.3 What is the Difference between IAX2 and IAX? -- 2.4 Why another New VoIP Protocol? -- 2.5 How Does IAX Solve VoIP Pains? -- 2.6 How is Calls Multiplexing Achieved? -- 2.7 And What About Demultiplexing? -- 2.8 What Port Number Does IAX Use? -- 2.9 What Transport Protocol Does IAX Use? -- 2.10 Is IAX a Reliable Protocol? -- 2.11 How Does IAX Ensure Reliability? -- 2.12 Is there an IAX Registration Procedure? -- 2.13 Does IAX Registration Differ from SIP Registration? -- 2.14 How Are Media Streams Transported in IAX? -- 2.15 Is CODEC Negotiation Supported by IAX? -- 2.16 Is On-Fly CODEC Change Possible During a Call? -- 2.17 IAX: a Path-Coupled or Decoupled Protocol? -- 2.18 Can IAX be Aware of the Status of the Network Load? -- 2.19 What About Security? -- 2.20 Could IAX Devices Be Managed? -- 2.21 Is Firmware Version Updating Supported by IAX? -- 2.22 Can IAX Be Extended to Offer New Features? -- 2.23 How is an IAX Resource Identified? -- 2.24 What Does an IAX URI Look Like? -- 2.25 Is it Possible to Set a Call Involving Several IAX Servers? -- 2.26 Is it Possible to Discover the Location of an IAX Resource? -- 2.27 What Is DUNDi? -- 2.28 What Is TRIP? -- 2.29 What Is ENUM? -- References -- Further Reading -- Part One: IAX Protocol Specifications -- 3 IAX Uniform Resource Identifier -- 3.1 Introduction -- 3.2 Format of IAX Uniform Resource Identifiers -- 3.3 Examples of IAX Uniform Resource Identifiers -- 3.4 Comparing IAX Uniform Resource Identifiers.
3.5 IAX Uniform Resource Identifiers and ENUM -- References -- Further Reading -- 4 IAX Frames -- 4.1 Introduction -- 4.2 Full Frames -- 4.3 Mini Frames -- 4.4 Meta Frames -- 4.5 Encrypted Frames -- 4.6 Conclusion -- References -- Further Reading -- 5 IAX Information Elements -- 5.1 Introduction -- 5.2 List of IAX Information Elements -- 5.3 Example of IAX Information Element Traces -- References -- Further Reading -- 6 IAX Messages -- 6.1 Introduction -- 6.2 Taxonomy of IAX Messages -- 6.3 IAX Requests/Responses -- 6.4 IAX Functional Categories -- 6.5 IAX Media Frames -- 6.6 IAX Reliable/Unreliable Messages -- References -- Further Reading -- 7 IAX Connectivity Considerations -- 7.1 Introduction -- 7.2 IAX Transport Protocol -- 7.3 IAX Port Number -- 7.4 IAX Call Multiplexing and Demultiplexing -- 7.5 IAX Reliability Mechanism -- 7.6 Authentication and Encryption -- 7.7 Conclusion -- References -- Further Reading -- 8 IAX Operations -- 8.1 Introduction -- 8.2 Provisioning and Firmware Download -- 8.3 Registration -- 8.4 Call Setup -- 8.5 Call Tear-Down -- 8.6 Call Monitoring -- 8.7 Call Optimisation -- 8.8 Conclusion -- References -- Further Reading -- Part Two: Discussion and Analysis -- 9 IAX and Advanced Services -- 9.1 Introduction -- 9.2 CODEC Negotiation -- 9.3 Video Sessions -- 9.4 Negotiation of Several Media Types in the Same IAX Session -- 9.5 Presence Services -- 9.6 Instant Messaging -- 9.7 Topology Hiding -- 9.8 Mobility -- 9.9 Miscellaneous -- 9.10 Conclusion -- References -- Further Reading -- 10 Multi-IAX Servers Environment -- 10.1 Introduction -- 10.2 Focus -- 10.3 Discovery of IAX Resources -- 10.4 Setting End-to-End Calls -- 10.5 Load Balancing -- 10.6 Path-Coupled and Path-Decoupled Discussion -- 10.7 Forking -- 10.8 Route Symmetry -- 10.9 Conclusion -- References -- 11 IAX and NAT Traversal -- 11.1 Introduction -- 11.2 Structure -- 11.3 NAT Types -- 11.4 IAX and NAT Traversal Discussion -- 11.5 Operational Considerations -- 11.6 Conclusion -- References.
Further Reading -- 12 IAX and Peer-to-Peer Deployment Scenarios -- 12.1 Introduction -- 12.2 Scope -- 12.3 A P2P Solution for Corporate Customers -- 12.4 Conclusion -- References -- Further Reading -- 13 IAX and IPv6 -- 13.1 Introduction -- 13.2 Context and Assumptions -- 13.3 Service Migration to IPv6 -- 13.4 Structure -- 13.5 The IP Address Exhaustion Problem -- 13.6 IPv6: a Long-Term Solution -- 13.7 Why IPv6 May Be Problematic for Telephony Signalling Protocols: the SIP Example -- 13.8 IAX: an IP Version-Agnostic Protocol? -- 13.9 Deployment of IAX Services in a 'Pure' IPv6 Environment -- 13.10 Heterogeneous Environment -- 13.11 Conclusion -- References -- Further Reading -- 14 IAX: Towards a Lightweight SBC? -- 14.1 Introduction -- 14.2 IP Telephony Administrative Domain -- 14.3 Deployment Scenarios -- 14.4 Deployment Contexts -- 14.5 Service Limitations Caused by SBCs -- 14.6 Functional Decomposition -- 14.7 Taxonomy of SBC Functions in an SIP Environment -- 14.8 Validity of these Functions in an IAX Architecture -- 14.9 Conclusion -- References -- Further Reading -- Part Three: Deployment Scenarios in SIP-Based Environments -- 15 Scenarios for the Deployment of IAX-Based Conversational Services -- 15.1 SIP Complications -- 15.2 Structure -- 15.3 Beyond the 'SIP-Centric' Era -- 15.4 Methodology -- 15.5 Overall Context -- 15.6 Architectural Requirements -- 15.7 Brief Comparison -- 15.8 Taxonomy -- 15.9 Introducing IAX into Operational Networks -- 15.10 Conclusion. / -- References -- 16 IAX in the Access Segment of SIP-Based Service Architectures -- 16.1 Introduction -- 16.2 A 'High-Level' Description of the Interworking Function -- 16.3 Examples of Call Flows -- 16.4 Bandwidth Optimisation: An Extension to SIP -- 16.5 Conclusion -- References -- 17 Validation Scenario -- 17.1 Overview -- 17.2 Configuring Asterisk Servers -- 17.3 Configuring the SIP Express Router (SER) -- 17.4 User Agent Configuration -- 17.5 Conclusion -- Further Reading -- Index.
Record Nr. UNINA-9910876816403321
Boucadair Mohamed  
Chichester, U.K., : Wiley, 2009
Materiale a stampa
Lo trovi qui: Univ. Federico II
Opac: Controlla la disponibilità qui
IP telephony : deploying VoIP protocols and IMS infrastructure / / Olivier Hersent
IP telephony : deploying VoIP protocols and IMS infrastructure / / Olivier Hersent
Autore Hersent Olivier
Edizione [2nd ed.]
Pubbl/distr/stampa Hoboken, New Jersey : , : John Wiley, , 2011
Descrizione fisica 1 online resource (475 p.)
Disciplina 004.69/5
Soggetto topico Internet telephony
Convergence (Telecommunication)
ISBN 1-119-95733-8
1-282-77713-0
9786612777134
0-470-97308-0
0-470-97326-9
Formato Materiale a stampa
Livello bibliografico Monografia
Lingua di pubblicazione eng
Nota di contenuto Contents / / -- Abbreviations -- Glossary -- Preface -- 1 Voice over multimedia -- 1.1Transporting voice, fax and video over a packet network -- 1.2Encoding media streams -- 2 H.323: Packet-based Multimedia Communications Systems -- 2.1 Introduction -- 2.2 H.323 step by step -- 2.3 Optimizing and enhancing H.323 -- 2.4 Conferencing with H.323 -- 2.5 Directories and numbering -- 2.6 H.323 security -- 2.7 Supplementary services -- 2.8Future work on H.323 -- 3 Session Initiation Protocol -- 3.1. The origin and purpose of SIP -- 3.2. From RFC 2543 To RFC 3261 -- 3.3. Overview of a simple SIP call -- 3.4. Call handling services with SIP -- 3.5. SIP security -- 3.6. Instant messaging (IM) and presence -- 4 The 3GPP IP Multimedia Subsystem (IMS) architecture -- 4.1. Introduction -- 4.2. Overview of the IMS architecture -- 4.3. The IMS CSCFs -- 4.4. The full picture : 3GPP release 8, TISPAN -- 5 The Media Gateway to Media Controller Protocol (MGCP) -- 5.1Introduction:why MGCP? -- 5.2 MGCP 1.0 -- 5.3 Sample MGCP call flows -- 5.4 The future of MGCP -- 6 Advanced Topics: Call Redirection -- 6.1CallredirectioninVoIPnetworks -- 7 Advanced Topics: NAT Traversal -- 7.1 Introduction to Network AddressTranslation343 -- 7.2 Workarounds for VoIP when the network cannot be controlled -- 7.3 Recommended network design for service providers -- 7.4 Conclusion -- Index / /
Record Nr. UNINA-9910140756803321
Hersent Olivier  
Hoboken, New Jersey : , : John Wiley, , 2011
Materiale a stampa
Lo trovi qui: Univ. Federico II
Opac: Controlla la disponibilità qui