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| Introduction | |
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| PSTN | |
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| Overview of the PSTN and Comparisons to Voice over IP | |
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| The Beginning of the PSTN | |
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| Understanding PSTN Basics | |
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| PSTN Services and Applications | |
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| Drivers Behind the Convergence Between Voice and Data Networking | |
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| Packet Telephony Network Drivers | |
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| New PSTN Network Infrastructure Model | |
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| Summary | |
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| Enterprise Telephony Today | |
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| Similarities Between PSTN and ET | |
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| Differences Between PSTN and ET | |
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| Common ET and PSTN Interworking | |
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| Summary | |
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| Basic Telephony Signaling | |
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| Signaling Overview | |
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| E&M Signaling | |
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| CAS | |
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| ISDN | |
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| QSIG | |
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| DPNSS | |
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| Summary | |
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| Signaling System 7 | |
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| SS7 Network Architecture | |
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| SS7 Protocol Overview | |
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| SS7 Examples | |
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| List of SS7 Specifications | |
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| Summary | |
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| PSTN Services | |
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| Plain Old Telephone Service | |
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| Business Services | |
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| Service Provider Services | |
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| Summary | |
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| Voice over IP Technology | |
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| IP Tutorial | |
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| OSI Reference Model | |
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| Internet Protocol | |
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| Data Link Layer Addresses | |
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| IP Addressing | |
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| Routing Protocols | |
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| EIGRP | |
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| IP Transport Mechanisms | |
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| Summary | |
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| References | |
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| VoIP: An In-Depth Analysis | |
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| Delay/Latency | |
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| Jitter | |
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| Pulse Code Modulation | |
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| Voice Compression | |
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| Echo | |
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| Packet Loss | |
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| Voice Activity Detection | |
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| Digital-to-Analog Conversion | |
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| Tandem Encoding | |
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| Transport Protocols | |
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| Dial-Plan Design | |
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| End Office Switch Call-Flow Versus IP Phone Call | |
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| Summary | |
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| References | |
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| Quality of Service | |
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| QoS Network Toolkit | |
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| Edge Functions | |
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| Traffic Policing | |
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| Backbone Networks | |
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| Rules of Thumb for QoS | |
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| Cisco Labs' QoS Testing | |
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| Summary | |
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| Billing and Mediation Services | |
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| Billing Basics | |
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| Case Study: Cisco SIP Proxy Server and Billing | |
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| Challenges for VoIP Networks | |
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| Mediation Services | |
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| Summary | |
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| Voice Security | |
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| Security Requirements | |
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| Security Technologies | |
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| Protecting Voice Devices | |
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| Protecting IP Network Infrastructure | |
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| Security Planning and Policies | |
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| Summary | |
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| IP Signaling Protocols | |
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| H.323 | |
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| H.323 Elements | |
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| H.323 Protocol Suite | |
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| H.323 Call-Flows | |
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| Summary | |
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| SIP | |
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| SIP Overview | |
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| SIP Message Building Blocks | |
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| Basic Operation of SIP | |
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| SIP Procedures for Registration and Routing | |
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| SIP Extensions | |
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| Summary | |
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| Gateway Control Protocols | |
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| MGCP Overview | |
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| MGCP Model | |
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| MGCP Commands and Messages | |
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| MGCP Call Flows | |
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| Advanced MGCP Features | |
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| H.248/MEGACO | |
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| Summary | |
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| VoIP Applications and Services | |
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| PSTN and VoIP Interworking | |
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| Cisco Packet Telephony | |
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| Packet Voice Network Overview | |
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| PGW2200 Architecture and Operations | |
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| PGW2200 Implementation | |
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| PSTN Signaling Over IP | |
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| Changing Landscape of PSTN-IP Interworking | |
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| Session Border Controller (SBC) | |
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| Summary | |
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| Service Provider VoIP Applications and Services | |
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| The Service Provider Dilemma | |
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| Service Provider Applications and Benefits | |
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| Service Provider VoIP Deployment: Vonage | |
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| Service Provider Case Study: Prepaid Calling Card | |
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| Session Border Control: Value Addition | |
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| VoIP Peering: Top Priority for the Service Providers | |
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| Service Provider VoIP and Consumer Fixed Mobile Convergence | |
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| Summary | |
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| Enterprise Voice over IP Applications and Services | |
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| Migrating to VoIP Architecture | |
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| Enterprise Voice Applications and Benefits | |
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| Advanced Enterprise Applications | |
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| Wi-Fi-Enabled Phones | |
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| Better Voice Quality Using Wideband Codecs | |
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| Summary | |
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| Index | |