Voice over IP Fundamentals

Application Layer The Presentation Layer The Session Layer The Transport Layer The Network Layer The Data Link Layer The Physical Layer Internet Protocol Data Link Layer Addresses IP Addressing Routing Protocols Distance-Vector Routing Link-State Routing BGP IS-IS OSPF IGRP EIGRP RIP IP Transport Mechanisms TCP UDP Summary References Chapter 7 VoIP: An In-Depth Analysis Delay/Latency Propagation Delay Handling Delay Queuing Delay Jitter Pulse Code Modulation What Is PCM? A Sampling Example for Satellite Networks Voice Compression Voice Coding Standards Mean Opinion Score Perceptual Speech Quality Measurement Echo Packet Loss Voice Activity Detection Digital-to-Analog Conversion Tandem Encoding Transport Protocols RTP Reliable User Data Protocol Dial-Plan Design End Office Switch Call-Flow Versus IP Phone Call Summary References Chapter 8 Quality of Service QoS Network Toolkit Edge Functions Bandwidth Limitations cRTP Queuing Packet Classification Traffic Policing Traffic Shaping Edge QoS Wrap-Up Backbone Networks High-Speed Transport Congestion Avoidance Backbone QoS Wrap-Up Rules of Thumb for QoS Cisco Labs' QoS Testing Summary Chapter 9 Billing and Mediation Services Billing Basics Authentication, Authorization, and Accounting (AAA) RADIUS Vendor-Specific Attributes (VSA) Billing Formats Case Study: Cisco SIP Proxy Server and Billing RADIUS Server Accounting Challenges for VoIP Networks Mediation Services Summary Chapter 10 Voice Security Security Requirements Security Technologies Shared-Key Approaches Public-Key Cryptography Protecting Voice Devices Disabling Unused Ports/Services HIPS Protecting IP Network Infrastructure Segmentation Traffic Policing 802.1x Device Authentication Layer 2 Tools NIPS Layer 3 Tools Security Planning and Policies Transitive Trust VoIP Protocol-Specific Issues Complexity Tradeoffs NAT/Firewall Traversal Password and Access Control Summary Part III IP Signaling Protocols Chapter 11 H.323 H.323 Elements Terminal Gateway Gatekeeper The MCU and Elements H.323 Proxy Server H.323 Protocol Suite RAS Signaling Call Control Signaling (H.225) Media Control and Transport (H.245 and RTP/RTCP) H.323 Call-Flows Summary Chapter 12 SIP SIP Overview Functionality That SIP Provides SIP Network Elements Interaction with Other IETF Protocols Message Flow in SIP Network SIP Message Building Blocks SIP Addressing SIP Messages SIP Transactions and Dialog Transport Layer Protocols for SIP Signaling Basic Operation of SIP Proxy Server Example Redirect Server Example B2BUA Server Example SIP Procedures for Registration and Routing User Agent Discovering SIP Servers in a Network SIP Registration and User Mobility SIP Message Routing Routing of Subsequent Requests Within a SIP Dialog Signaling Forking at the Proxy Enhanced Proxy Routing SIP Extensions SIP Extension Negotiation Mechanism: Require, Supported, Allow Headers Caller and Callee Preferences SIP Event Notification Framework: Subscription and Notifications SUBSCRIBE and NOTIFY Methods Monitoring Registration State Using the Subscription-Notification Framework SIP REFER Request Presence and Instant Messaging Overview SIP Extensions for IM and Presence Summary Chapter 13 Gateway Control Protocols MGCP Overview MGCP Model Endpoints Connections Calls MGCP Commands and Messages CreateConnection (CRCX) ModifyConnection (MDCX) DeleteConnection (DLCX) NotificationRequest (RQNT) Notification (NTFY) AuditEndpoint (AUEP) AuditConnection (AUCX) RestartIn-Progress (RSIP) EndpointConfiguration (EPCF) MGCP Response Messages MGCP Call Flows Basic MGCP Call Flow Trunking GW-to-Trunking GW Call Flow Advanced MGCP Features Events and Event Packages Digit Maps Embedded Notification Requests Non-IP Bearer Networks H.248/MEGACO Summary Part IV VoIP Applications and Services Chapter 14 PSTN and VoIP Interworking Cisco Packet Telephony Packet Voice Network Overview Network Elements Residential Gateway Network Interfaces PGW2200 Architecture and Operations PGW2200-Supported Protocols Execution Environment North American Numbering Plan PGW2200 Implementation Application Check-Pointing MGC Node Manager Accounting PSTN Signaling Over IP SCTP IUA Changing Landscape of PSTN-IP Interworking Session Border Controller (SBC) Summary Chapter 15 Service Provider VoIP Applications and Services The Service Provider Dilemma Service Provider Applications and Benefits Service Provider VoIP Deployment: Vonage VoIP Operational Advantages Service Provider Case Study: Prepaid Calling Card BOWIE.net Multiservice Networks Session Border Control: Value Addition VoIP Peering: Top Priority for the Service Providers Service Provider VoIP and Consumer Fixed Mobile Convergence Summary Chapter 16 Enterprise Voice over IP Applications and Services Migrating to VoIP Architecture Enterprise Voice Applications and Benefits Advanced Enterprise Applications Web-Based Collaboration and Conference The Need for Presence Information Presence-Aware Services Wi-Fi-Enabled Phones Better Voice Quality Using Wideband Codecs Summary 1587052571 TOC 7/6/2006