Triple-Play Service Deployment

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200 Troubleshooting Voice over IP The emergence of Voice over IP (VoIP) as the new standard for business telephone systems has been confirmed by marketing data that shows revenue generated by IP-based PBX lines has surpassed conventional time domain multiplexing (TDM) lines in percentage of worldwide revenue. The penetration of VoIP in the residential market is deepening quickly. A key driver of this rapid adoption rate is triple-play service offerings from providers offering phone service at a low incremental cost. Potential customers are initially attracted to VoIP by its low price but tend to stay with the service when they grow accustomed to its advanced features such as Web-based call logs, click-to-dial and virtual phone numbers. Understanding VoIP Equipment and Protocols The customer premises equipment (CPE) for a VoIP subscriber can consist of either a traditional POTS phone that plugs into a terminal that converts signals to VoIP or a phone with native VoIP support that can connect directly to an IP network. The server supports the routing of calls across the network and provides management functions. The IP network provides connectivity between the terminals.
Chapter 8: Troubleshooting VoIP Data plane protocols When a call has been set up, the speech is encapsulated in two data plane protocols, Real-time Transport Protocol (RTP) and User Datagram Protocol (UDP), and transmitted in an IP frame. The control plane or signaling portion of the VoIP protocol manages the traffic that is required to connect phone calls and maintain the overall network operation. There are three main control plane standards used for VoIP today, H.323, SIP, and MGCP. Audio Video Audio Codecs RTP Figure 8.1 Data plane protocols for VoIP. Video Codecs UDP IP DATA LINK PHYSICAL Voice Data RTCP RTP is the protocol that supports voice content traffic. Each RTP packet contains a small portion of the voice conversation. The size of the packet and the size of the voice sample inside the packet depend on the codec used. If an RTP packet is lost or dropped by the network it will not be retransmitted to avoid delay in the conversation due to the network or the phones requesting lost packets.The network should be designed to minimize lost packets. 201
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Triple-Play Service Deployment A Co
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Copyright 2007, JDS Uniphase Corpor
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Recommended test tools . . . . . .
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VoIP Service Quality . . . . . . .
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Acknowledgements The JDSU Triple-Pl
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In North America, cable operators h
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Finally, securing all these service
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2 The Vision—Reliable Triple-Play
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4 The Building Blocks Chapter 1: Th
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6 Development/ Production - Compone
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8 Chapter 1: The Vision-Reliable Tr
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10 Chapter 1: The Vision-Reliable T
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16 Triple-Play Service Delivery ove
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18 Chapter 2: Triple-Play Service D
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20 Bandwidth Chapter 2: Triple-Play
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24 Encapsulation DA Chapter 2: Trip
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26 ISP/Internet ASP & Video Headend
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36 centralized location, the abilit
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38 Deploying and Troubleshooting Fi
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40 For “brownfield” or overlaid
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42 BPON uses time division multiple
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44 Voice IP Data Video Figure 3.3 A
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46 From the splice enclosure, signa
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48 1490nm laser/ 1310nm meter OLT 1
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50 Central Office Depending on the
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52 Chapter 3: Deploying and Trouble
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58 Acceptance testing between the s
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60 Once customers have been establi
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62 When there is a physical layer f
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66 Acceptance testing is always per
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68 1490nm laser/ 1310nm meter OLT 1
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70 Recommended test tools Whether t
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74 These effects result in an easy-
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76 Another approach uses a loss tes
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78 Selective Optical Power Meters A
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82 Troubleshooting the Copper Plant
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84 Chapter 4: Troubleshooting the C
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90 Capacitive balance Another metho
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92 TDR Response (V) 7.3 3.6 Figure
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94 Loop length also can be measured
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96 Filter Technology Lower 3dB Uppe
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100 Chapter 4: Troubleshooting the
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102 TDR capabilities A time domain
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104 Bridged taps Bridged taps, or l
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112 Physical Layer Test - Foreign V
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114 Troubleshooting the Premises Wi
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118 R-Value Testing the Premises Ne
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122 Typical Symptom Fault Condition
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124 Fault Common Cause Diagnosis Go
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126 Locating and resolving coax pro
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130 Using advanced signal processin
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132 Relative Frequency % 5 4 3 2 1
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142 Troubleshooting Video in the He
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144 MPEG-2 TS over RF Understanding
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146 elementary streams (ES). Each d
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148 Chapter 6: Troubleshooting Vide
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Page 166 and 167: 152 MPEG Video Syntax MPEG-2 System
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Page 182 and 183: 168 Interoperability and segmentati
Page 192 and 193: 178 Troubleshooting Video Service i
Page 194 and 195: 180 Figure 7.2 A schematic diagram
Page 200 and 201: 186 STB DSL Modem EPG/Multicast Inf
Page 202 and 203: 188 RTSP Latency PAUSE Latency PLAY
Page 206 and 207: 192 Video Service Troubleshooting:
Page 208 and 209: 194 Standard troubleshooting steps
Page 210 and 211: 196 Dropped packets indicate a prob
Page 216 and 217: 202 Control plane protocols Real Ti
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Page 220 and 221: 206 Chapter 8: Troubleshooting VoIP
Page 224 and 225: 210 Network Equipment Installation
Page 226 and 227: 212 Figure 8.5 PVA-1000 While check
Page 228 and 229: 214 Using handheld IP phone emulato
Page 230 and 231: 216 Provisioning Tests Purpose: To
Page 232 and 233: 218 Solving Voice Quality Problems
Page 236 and 237: 222 Troubleshooting High Speed Data
Page 238 and 239: 224 ATU-Cs POTS Switch DSLAM health
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Page 242 and 243: 228 R ate (Mbits /s ) performance o
Page 244 and 245: 230 Chapter 9: Troubleshooting High
Page 248 and 249: 234 The JDSU HST-3000 provides comp
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250 Chapter 10: Service Assurance f
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252 b. Correlate network performanc
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254 Passive service monitoring Hard
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258 Measurable Benefits Successful
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262 PON Reflectometer Trace Analysi
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264 Theoretical Method of PON Refle
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266 Learning Acquisition Phase The
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268 Figure A.7 Reflective event dev
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270 Appendix A: PON Reflectometer T
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272 Glossary AAL5 ATM Adaptation La
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274 Glossary Block A set of 8x8 pix
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276 Glossary Digital Television A g
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278 Glossary ETR 290 ETSI recommend
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280 Glossary I/F Interface ICMP Int
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282 Glossary MGT Master Guide Table
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284 Glossary Multiplex (n) A digita
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286 Glossary PSI Program Specific I
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288 Glossary ST Stuffing Table. An
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290 Notes: Notes
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292 Notes
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Test & Measurement Regional Sales N
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Triple-Play Service Deployment

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