VOIP FOR BEGINNERS
ABOUT THIS BOOK CONVENTIONS USED IN THIS BOOK WHAT YOU’RE NOT TO READ FOOLISH ASSUMPTIONS HOW THIS BOOK IS ORGANIZED PART I: VOIP BASICS PART II: TAKING VOIP TO YOUR NETWORK PART III: MAKING THE MOVE TO VOIP PART IV: THE PART OF TENS PART V: APPENDIXES ICONS USED IN THIS BOOK WHERE TO GO FROM HERE IN THE BEGINNING, THERE WAS POTS FROM POTS TO PACKETS EYE FOR IP TELEPHONY MAKING INTERNAL CALLS MAKING EXTERNAL CALLS GAINING FLEXIBILITY WITH VOIP LOOKING AT THE TCP/IP MODEL TCP/IP LAYERS TCP/IP DIFFERENCES MR BELL ANALOG TELEPHONE CIRCUITS TELEPHONY GOES DIGITAL COMBINING ANALOG AND DIGITAL DIGITAL TELEPHONY INVADES PSTN TERRITORY THE CIRCUIT-SWITCHED NETWORK GETS ORGANIZED THE DIGITAL SERVICES CARRIER NETWORK WAR BREAKS OUT BETWEEN CIRCUITS AND PACKETS PRIVATE TELEPHONE SYSTEMS REDUCE POTS LINE COSTS THE CENTREX MODEL THE KTS AND PBX MODELS PRIVATE SYSTEMS VERSUS VOIP CONVERGING NETWORKS ACCESSING THE NETWORK SERVICE CATEGORIES COST YOU BIG TIME PAYING THE LOCAL PIPER GOING THE DISTANCE WITH INTRALATA RATES INTRASTATE SERVICE RATES INTERSTATE CARRIER SERVICE INTERNATIONAL CARRIER SERVICE SUMMING UP CARRIER SERVICES SAVING WITH VOIP GOOD NEWS FOR THE FAMILY BUDGET TAKING SAVINGS TO THE OFFICE TOLL-BYPASS: SAVING WITH CALLS AT A DISTANCE ADD-ON RECURRING COSTS VOIP SAVINGS: A CASE STUDY ANALYZING THE CLIENT’S USAGE THE VOIP SOLUTION APPLYING VOIP TO YOUR SITUATION CSI: TELEPHONY CHOOSING A TRANSPORT THE FIVE GOLDEN RINGS OF CSI THE PSTN CSI THE DS CSI THE OPTICAL CARRIER CSI THE HYBRID FIBER-CABLE CSI THE WIRELESS CSI SUMMING UP THE CSIS HOW VOIP AND THE INTERNET FIT THE CSI PICTURE VOIP OVER INTERNET VOIP IN THE CORPORATE SECTOR VOIP IN THE CONSUMER SECTOR UNDERSTANDING HOW THE PSTN SUPPORTS VOIP THE PSTN-VOIP BASELINE THE POTS TRANSPORT THE ISDN TRANSPORT THE DSL TRANSPORT CONTROLLING CALLS SIGNALING SYSTEM 7 (SS7) CALL CONTROL AND VOIP DELAYS AND ERRORS QUALITY AND VOIP NETWORK DELAY POOR COMPRESSION SIGNAL ATTENUATION BROADBAND TRANSMISSION METHODS ASYMMETRIC SYMMETRIC VOIP WITH YOUR CABLE MODEM VOIP SHARES SOMETHING WITH YOUR TV ADDING VOIP SETTING UP VOIP ON A CABLE MODEM POSSIBLE CABLE MODEM PROBLEMS VOIP THROUGH YOUR DSL CONNECTION POTS PLUS! SETTING UP VOIP ON YOUR DSL LINE POTENTIAL DSL PROBLEMS VOIP OVER POTS BASICS OF DEDICATED TRANSPORTS BANDWIDTH AND SPEED COSTS OF DEDICATION HIGH-QUALITY VOIP CALLS TYPES OF DEDICATION THE DS TRANSPORTS THE OC TRANSPORTS CONVERGING DEDICATED AND SWITCHED NETWORKS MANAGING BANDWIDTH DEDICATING CHANNELS TO APPLICATIONS DYNAMIC BANDWIDTH ALLOCATION KEEPING A SWITCHED LINE WHY WIFI? ETHERNET NETWORKING AND VOIP EXAMINING THE IEEE 802 11 STANDARD MOVING UP TO WIRELESS ADDING VOIP TO THE WIRELESS NETWORK IP SOFT PHONES FOR POCKET PCS WIRELESS EXTENSION TO CELLULAR TAKING VOIP TO THE WIMAX GRADUATING TO IEEE 802 16 PUTTING WIMAX TO USE GETTING HIP TO WISIP SIP ENABLES SMOOTHER CONVERSIONS USING SIP TODAY NETWORK OPTIONS AFFECT QUALITY OF SERVICE INTERNET PROTOCOLS AND QUALITY OF SERVICE ISPS MAKE THE INTERNET GO ROUND EXAMINING PROTOCOL LAYERS FIREWALLS FOR SECURITY CONNECTING THROUGH A VPN VPN COSTS IMPLEMENTING A VPN RUNNING DOWN THE THREE FLAVORS OF VOIP PHONES VOIP HARD PHONES BASIC HARD PHONES INTERMEDIATE HARD PHONES ADVANCED HARD PHONES FEATURES SUPPORTED VOIP SOFT PHONES STATIONARY COMPUTERS PORTABLE COMPUTERS VOIP WIRELESS PHONES MAXIMIZING YOUR CURRENT TELEPHONE INVESTMENT UPGRADING OLDER TELEPHONE SYSTEMS USING OLDER TELEPHONES ON THE NEW VOIP NETWORK VOIP COMES AND THE CHARGES GO REDUCING OR ELIMINATING PHONE LINES TAKE OFF YOUR ADD-ON CHARGES YIPPEE! DEREGULATING YOUR TELEPHONE COSTS FREE CALL FEATURES THE FINAL FOUR MEET VOIP GOODBYE POTS, HELLO VOIP GOODBYE CENTREX, HELLO VOIP-CENTREX GOODBYE KTS, HELLO VOIP GOODBYE PBX, HELLO VOIP-PBX UNIFIED NETWORKS LARRY’S STORY JOANN’S STORY CONVINCING YOUR BOSS A SEAMLESS TRANSITION MEETING YOUR FUTURE WITH VOIP BANDWIDTH ON DEMAND CHALLENGES OF MULTIPLE LOCATIONS EVALUATING YOUR EXISTING NETWORKS DEVELOPING A PLAN DESIGNING A VOIP SOLUTION PUTTING YOUR PLAN INTO ACTION STAGING THE IMPLEMENTATION PLUG-AND-PLAY MANAGING DOWNTIME REVIEWING THE EFFECT FEATURES AND COSTS OF THE NEW VOIP NETWORK IT’S NOT JUST A NEW WAY TO DO CIRCUIT-SWITCHED BOTTOM-LINE ANALYSIS IS VOIP FOR YOU? FIGURING OUT THOSE CONTRACTS CURRENT COSTS MEET LONG-TERM PLANS ANALYZE BILLS AND CONTRACTS EVALUATING EXISTING NETWORKS BREAKING DOWN THE COSTS OF POTS TELEPHONY BREAKING DOWN THE COSTS OF COMPUTER NETWORKING PUTTING VOIP TO WORK SUPPORTING YOUR TELEPHONY CALLS UNDERSTANDING VOIP SAVINGS FINANCIAL ANALYSIS EVALUATING VOIP COSTS GATHERING COST DATA PERFORMING COMPARISONS MAKING THE INVESTMENT COST-EFFECTIVE VOIP DESIGNS PROVIDING SUPPORT IN-HOUSE PARTNERING KEEPING UP WITH TECHNOLOGY CHANGING DIRECTION OF TELEPHONY INDUSTRY FEATURE-RICH, COST-EFFECTIVE ALTERNATIVES EXISTING INVESTMENT PROTECTION SEAMLESS MAINTENANCE AND MANAGEMENT FLEXIBILITY AND PORTABILITY ENHANCED NETWORK MANAGEMENT BETTER ALLOCATION OF PERSONNEL PRODUCTIVITY APPLICATIONS BETTER BANDWIDTH UTILIZATION REDUCED COSTS ONE CARRIER ONE BILL FREE LOCAL SERVICE REDUCED OR ELIMINATED TOLL SERVICE CHARGES REDUCED INTERNATIONAL CHARGES MORE BANDWIDTH ENHANCED INTERNET ACCESS MORE PORTS TO CONNECT MORE PHONES AND COMPUTERS WIRELESS SERVICE IN YOUR HOME VIDEOCONFERENCING VOIP RUNS ONLY ON THE INTERNET POTS IS CHEAPER POTS IS FASTER THE QUALITY OF SERVICE IS SUSPECT VOIP-ENABLED PHONES ARE PRICEY VOIP CALLS CAN BE INTERCEPTED 911 CALLS MAY NOT WORK VOIP IS NOT READY FOR PRIME TIME VOIP CALL FEATURES ARE EXPENSIVE YOU HAVE TO THROW OUT ALL YOUR OLD PBX TELEPHONES AVAYA CISCO SYSTEMS SIEMENS ALCATEL NORTEL MITEL NEC 3COM SHORETEL INTER-TEL