Carrier Grade Voice ...技术与应用(影印本
分類: 图书,计算机/网络,计算机理论,
作者： DANIEL COLLINS
出 版 社： 人民邮电出版社
出版时间： 2001-4-1字数：版次：页数：印刷时间： 20010401开本：印次：纸张：I S B N ： 9787115092069包装：内容简介
本书主要内容包括：VoIP的基础知识，话音在IP网的传输，高速编码技术，H.323协议，SIP协议，VoIP与SS7，相关的业务质量(QoS)，接入网技术，在IP网中发送传真的技术等。
本书主要读者对象为从事通信的工程技术人员及大专院校相关专业师生。
目录
Preface
*Chapter1Introduction1
*Introduction2
*What Does Carrier Grade Mean?2
*What Does VolP Mean?3
*A Little About IP4
*Why VolP?5
Why Carry Voice?5
Why Use IP for Voice?6
Lower Equipment Cost7
Voice/Data Integration and Advanced Services9
Lower Bandwidth Requirements12
The Widespread Availability of IP13
*The VolP Market14
*VolP Challenges15
Speech Quality16
Network Reliability and Scalability19
Managing Access and Prioritizing Traffic20
*VolP Implementations20
IP-Based PBX Solutions21
IP Voice Mail22
Hosted PBX Solutions22
IP Call Centers23
IP User Devices24
*Overview of Following Chapters24
Chapter2Transporting Voice by Using IP29
*Introduction30
*Overview of the IP Protocol Suite31
*Internet Standards and the Standards Process34
The Internet Society34
The Internet Architecture Board(IAB)35
The Internet Engineering Task Force (IETF)35
The Internet Engineering Steering Group(IESG)36
The InternetAssigned Numbers Authority(IANA)36
The Internet Standards Process36
*IP38
The IP Header38
IP Routing39
*The Transmission Control Protocol(TCP)44
The TCP Header45
TCP Connections47
*The User Datagram Protocol(UDP)49
Voice over UDP, not TCP51
*The Real-Time Transport Protocol(RTP)52
RTP Payload Formats53
The RTP Header57
Mixers and Translators61
*The RTP Control Protocol(RTCP)62
RTCP Sender Report(SR)64
RTCP Receiver Report(RR)67
RTCP Source Description Packet(SDES)67
RTCP BYE Packet68
Application-Defined RTCP Packet69
Calculating Round-Trip Time70
Calculating Jitter70
Timing of RTCP Packets71
*IP Multicast72
*IP Version 674
IP Version 6 Header74
IP Version 6 Addresses75
IP Version 6 Header Extensions78
Interoperating IP Version 4 and IP Version681
*Other Supporting Functions and Protocols82
IP Security83
Domain Name Service (DNS)84
Path MTU Discovery85
Chapter3Speech-Coding Techniques87
*Introduction88
*Voice Quality89
*A Little Abort Speech90
*Voice Sampling93
Quantization94
Types of Speech Coders96
*G.71197
*Adaptive DPCM(ADPCM)98
*Analysis-by-Synthesis(ABS) Codecs98
G.728 LD-CELP99
G.723.1 ACELP101
G.729103
*Selecting Codecs105
*Cascaded Codecs106
*Tones,Signals,and DTMF Digits107
Chapter4H.323111
*Introduction112
*The H.323 Architecture113
*Overview of H.323 Signaling115
Overview of H.323 Protocols117
H.323 Addressing119
Codecs120
*RAS Signaling120
Gatekeeper Discovery122
Endpoint Registration and Registration Cancellation125
Endpoint Location127
Admission128
Bandwidth Change130
Status132
Disengage133
Resource Availability134
Request in Progress134
*Call Signaling134
Setup137
Call Proceeding137
Alerting138
Progress138
Connect138
Release Complete138
Facility139
Interaction Between Call Signaling and H.245 Control Signaling139
*Call Scenarios140
Basic Call Without Gatekeepers140
A Basic Call With Gatekeepers and Direct-Endpoint Call Signaling141
A Basic Call With Gatekeeper/Direct-Routed Call Signaling142
A Basic Call With Gatekeeper-Routed Call Signaling144
Optional Called-Endpoint Signaling146
*H.245 Control Signaling148
H.245 Message Groupings148
The Concept of Logical Channels149
H.245 Procedures149
Fast-Connect Procedure155
H.245 Message Encapsulation158
*Conference Calls160
A Pre-Arranged Conference160
An Ad-Hoc Conference160
Chapter5The Session Initiation Protocol(SIP)163
*Introduction164
*The Popularity of SIP164
*SIP Architecture165
SIP Network Entities166
SIP Call Establishment168
SIP Advantages over Other Signaling Protocols169
*Overview of SIP Messaging Syntax170
SIP Requests172
SIP Responses173
SIP Addressing176
SIP Addressing177
Message Headers177
*Examples off SIP Message Sequences184
Registration184
Invitation186
Termination of a Call188
*Redirect and Proxy Servers188
Redirect Servers189
Proxy Servers191
*The Session Description Protocol(SDP)195
The Structure of SDP195
SDP Syntax197
*Usage of SDP With SIP203
Negotiation of Media204
*Usage of SIP for Features and Services206
Call Forwarding208
Consultation Hold209
*Sip Extensions and Enhancements211
The SIP 183 Session-Progress Message212
The SIP INFO Method213
The SIP-Supported Header214
Reliability of Provisional Responses216
Integration of SIP Signaling and Resource Management218
*Interworking223
PSTN Interworking224
Interworking With H.323227
*Summary231
Chapter6Media Gateway Control and the Softswitch Architecture233
*Introduction234
*Separation of Media and Call Control234
*Softswitch Architecture236
*Requirements for Media Gateway Control238
*Protocols for Media Gateway Control239
*MGCP240
The MGCP Model241
MGCP Endpoints241
MGCP Calls and Connections243
Overview of MGCP Commands244
Overview of MGCP Responses249
Command and Response Details251
Call Setup Using MGCP257
Call Setup Based on Detected Events260
MGCP Events,Signals,and Packages263
Internetworking between MGCP and SIP264
MGCP Call Release266
*MEGACO/H.248267
MEGACO Architecture267
Overview of MEGACO Commands272
Descriptors274
Packages283
MEGACO Command and Response Details284
Call Setup Using MEGACO290
MEGACO Call Setup Based on Detected Events295
Interworking between MEGACO and SIP301
Chapter7VolP and SS7303
*Introduction304
*The SS7 Protocol Suite306
The Message Transfer Part306
ISUP and SCCP307
*SS7 Network Architecture308
Signaling Points310
Signal Transfer Point310
Service Control Point(SCP)311
Message Signal Units(MSUs)312
SS7 Addressing313
*The ISDN User Part(ISUP)314
*Performance Requirements for SS7316
*Sigtran318
Sigtran Architecture320
SCTP325
M3UA Operation337
M2UA Operation345
*Interworking SS7 and VolP Architectures347
Interworking Softswitch and SS7347
Interworking H.323 and SS7352
Chapter8Quality of Service355
*Introduction356
*The Need for QOS356
End-to-End QOS358
It's Not Just the Network359
*Overview of QOS Solutions360
More Bandwidth360
QOS Protocols and Architectures361
QOS Policies365
*The Resource-Reservation Protocol(RSVP)365
RSVP Syntax366
Establishing Reservations367
Reservation Errors378
Guaranteed Service378
Controlled-Load Service379
Removing Reservations and the Use of Soft State380
*DiffServ381
DiffServ Architecture382
The Need for Service-Level Agreements(SLAs)383
Per-Hop Behaviors(PHBs)387
*MPLS Architecture388
FECs and Labels390
Actions at LSRs392
Label-Switched Paths394
MPLS Traffic Engineering394
*Combining QOS Solutions401
*Further Information401
Chapter9Accessing the Network403
*Introduction404
*Modems404
*ISDN406
BRI407
Primary Rate Interface(PRI)409
The Future of ISDN409
*Digital Subscriber Line(DSL)410
DSL Variants411
The ADSL Architecture415
DSL Modulation418
DSL Challenges419
*Using the Cable TV Infrastructure421
Hybrid-Fiber Coax421
Data Transmission over the HFC Network422
The Packet Cable Architecture423
*Fixed Wireless Access425
LMDS425
*Mobile Services427
The Evolution to 3G for GSM428
The Evolution to 3G for IS-136 TDMA431
The Evolution to 3G for IS-95 CDMA432
Chapter10Fax over IP(FolP)433
*Introduction434
*Today's Fax Service434
T.4 and T.30434
*Real-Time Fax438
Sending Fax Messages over IP440
Fax and H.323445
TCP or UDP446
Fax and SIP,SDP,and RTP447
*E-Mail-Based Fax448
*References451
*Glossary459
*Index467
