Download

More documents

Recommendations

Info

21SIGNALING FOR VoIP21.1 INTRODUCTIONThe specifications for VoIP signaling protocols consist of a large set of documents,totaling thousands of pages. This chapter condenses those specifications into somethirty pages and is therefore limited to a relatively high-level look at the mostimportant signaling protocols, namely:. H.323. SIP. Gateway Control Protocol/H.248. SIGTRAN. BICCEach of these protocols performs a specific function and can be used for signalingbetween certain functional elements (Section 20.3.2). The most typical combinationsare shown in Table 21.1-1 and are discussed in more detail in the introductorysection of each protocol. H.323, SIP, and BICC are the primary call-setupprotocols; each of the other protocols performs auxiliary functions and works inconcert with one of the main three. In this chapter a VoIP network that useseither H.323, SIP, or BICC as the primary call-setup signaling protocol is referredto as a H.323, SIP, or BICC network, respectively.Figure 21.1-1 shows a deployment scenario of VoIP signaling protocols forconnections where the origination and/or the termination is a packet terminal(UA), and the primary call-setup protocol is either H.323 or SIP. Figure 21.1-2shows a deployment scenario where both the origination and the termination arein the switched-circuit network (SCN) and the primary call-setup protocol isBICC. Each scenario reflects one of the two avenues of convergence for voiceand data discussed at the beginning of Section 20.3.Signaling in Telecommunication Networks, Second Edition, by John G. van Bosse and Fabrizio U. DevetakCopyright # 2007 John Wiley & Sons, Inc.669
670 SIGNALING FOR VoIPTABLE 21.1-1VoIP Signaling Protocols Versus Network ElementsGK MG MGC UA SGGK H.323, SIP NA H.323, SIP H.323, SIP NAMG NA RTP a H.248 RTP a NAMGC H.323, SIP H.248 H.323, SIP, BICC H.323, SIP SIGTRANUA H.323, SIP RTP a H.323, SIP H.323, SIP, RTP a NASG NA NA SIGTRAN NA SIGTRANa RTP (Section 21.4.1) is not a signaling (L7) protocol and is used to transport packets in media streams, not forcall control.Note: NA, not applicable.Figure 21.1-1. VoIP signaling protocols and their relationships in H.323 or SIP networks.VoIP signaling protocols are application layer (L7) protocols that manage callcontrol. They utilize the services of TCP, SCTP, UDP, and SDP at Layer 4, of IPat Layer 3, and of protocols like Ethernet or PPP at Layer 2.Media streams typically use the services of UDP and RTP at Layer 4, of IP atLayer 3, and Ethernet or PPP at Layer 2. Their Layer 5–7 functions are handledby applications that are not discussed in this book.Figure 21.1-2. VoIP signaling protocols and their relationships in BICC networks.
Page 4:
Signaling inTelecommunicationNetwor
Page 7 and 8:
Copyright # 2007 by John Wiley & So
Page 10 and 11:
CONTENTSPreface to the Second Editi
Page 12 and 13:
CONTENTSix8.4 Basic Error Correctio
Page 14 and 15:
CONTENTSxiChapter 16 Transaction Ca
Page 16 and 17:
PREFACE TO THESECOND EDITIONThe fir
Page 18 and 19:
1INTRODUCTION TOTELECOMMUNICATIONST
Page 20 and 21:
1.1 TELECOMMUNICATION NETWORKS 3Fig
Page 22 and 23:
Page 24 and 25:
Page 26 and 27:
1.2 NUMBERING PLANS 9Local exchange
Page 28 and 29:
1.2 NUMBERING PLANS 11The NANP (for
Page 30 and 31:
1.3 DIGIT ANALYSIS AND ROUTING 13Fi
Page 32 and 33:
1.3 DIGIT ANALYSIS AND ROUTING 15Fi
Page 34 and 35:
1.4 ANALOG TRANSMISSION 17In the IC
Page 36 and 37:
1.4 ANALOG TRANSMISSION 19Figure 1.
Page 38 and 39:
1.4 ANALOG TRANSMISSION 21Figure 1.
Page 40 and 41:
1.5 DIGITAL TRANSMISSION 23land bas
Page 42 and 43:
1.5 DIGITAL TRANSMISSION 25Figure 1
Page 44 and 45:
1.5 DIGITAL TRANSMISSION 27Figure 1
Page 46 and 47:
1.6 SPECIAL TRANSMISSION EQUIPMENT
Page 48 and 49:
Page 50 and 51:
Page 52 and 53:
1.7 EXCHANGES 35Figure 1.7-2. Local
Page 54 and 55:
1.7 EXCHANGES 37Figure 1.7-4. Excha
Page 56 and 57:
1.8 ACCESS NETWORKS AND LINE CONCEN
Page 58 and 59:
1.10 REFERENCES 41ISDNITUITU-TLATAL
Page 60 and 61:
2INTRODUCTION TO SIGNALING2.1 OVERV
Page 62 and 63:
2.1 OVERVIEW 45networks and in the
Page 64 and 65:
2.1 OVERVIEW 47not involved in a ca
Page 66 and 67:
2.2 STANDARDS FOR SIGNALING SYSTEMS
Page 68 and 69:
2.3 ACRONYMS 51. Communications Sta
Page 70:
2.4 REFERENCES 537. R. B. Robrock,
Page 73 and 74:
56 SUBSCRIBER SIGNALINGFigure 3.1-1
Page 75 and 76:
58 SUBSCRIBER SIGNALINGFigure 3.2-1
Page 77 and 78:
60 SUBSCRIBER SIGNALING3.2.5 Tones
Page 79 and 80:
62 SUBSCRIBER SIGNALINGHook Status.
Page 81 and 82:
64 SUBSCRIBER SIGNALINGthe low-grou
Page 83 and 84:
66 SUBSCRIBER SIGNALING3.4.3 Tones
Page 85 and 86:
68 SUBSCRIBER SIGNALINGCall Waiting
Page 87 and 88:
70 SUBSCRIBER SIGNALING3.6.1 Caller
Page 89 and 90:
72 SUBSCRIBER SIGNALINGCalled Party
Page 91 and 92:
74 SUBSCRIBER SIGNALINGRRRSSSCSITSL
Page 93 and 94:
76 CHANNEL-ASSOCIATED INTEREXCHANGE
Page 95 and 96:
Page 97 and 98:
Page 99 and 100:
Page 101 and 102:
Page 103 and 104:
Page 105 and 106:
Page 107 and 108:
Page 109 and 110:
Page 111 and 112:
Page 113 and 114:
Page 115 and 116:
Page 117 and 118:
100 CHANNEL-ASSOCIATED INTEREXCHANG
Page 119 and 120:
Page 121 and 122:
Page 123 and 124:
Page 125 and 126:
Page 128 and 129:
5INTRODUCTION TOCOMMON-CHANNEL SIGN
Page 130 and 131:
5.1 SIGNALING NETWORKS 113Figure 5.
Page 132 and 133:
5.1 SIGNALING NETWORKS 115Quasiasso
Page 134 and 135:
5.1 SIGNALING NETWORKS 117Figure 5.
Page 136 and 137:
5.2 SIGNALING LINKS AND SIGNAL UNIT
Page 138 and 139:
Page 140 and 141:
Page 142 and 143:
5.3 ACRONYMS 125In the final step o
Page 147 and 148:
130 SIGNALING IN ACCESS NETWORKSTim
Page 149 and 150:
132 SIGNALING IN ACCESS NETWORKSCom
Page 151 and 152:
134 SIGNALING IN ACCESS NETWORKSTAB
Page 153 and 154:
136 SIGNALING IN ACCESS NETWORKSFig
Page 155 and 156:
Page 157 and 158:
140 SIGNALING IN ACCESS NETWORKSinf
Page 159 and 160:
142 SIGNALING IN ACCESS NETWORKSinf
Page 161 and 162:
Page 163 and 164:
Page 165 and 166:
148 SIGNALING IN ACCESS NETWORKSC-C
Page 167 and 168:
Page 169 and 170:
152 SIGNALING IN ACCESS NETWORKScan
Page 171 and 172:
154 SIGNALING IN ACCESS NETWORKSIDT
Page 174 and 175:
7INTRODUCTION TO SIGNALINGSYSTEM NO
Page 176 and 177:
7.1 SS7 STRUCTURE 159Message Transf
Page 178 and 179:
7.2 IDENTIFICATION OF SIGNALING POI
Page 180 and 181:
7.3 SS7 SIGNAL UNITS AND PRIMITIVES
Page 182 and 183:
7.4 ACRONYMS 165Figure 7.3-3 shows
Page 184 and 185:
8SS7 MESSAGE TRANSFER PARTThe Messa
Page 186 and 187:
8.2 MTP LEVEL 1 1698.1.2 Message Tr
Page 188 and 189:
8.3 OVERVIEW OF MTP LEVEL 2 171In e
Page 190 and 191:
8.3 OVERVIEW OF MTP LEVEL 2 173The
Page 192 and 193:
8.4 BASIC ERROR CORRECTION 175Figur
Page 194 and 195:
8.4 BASIC ERROR CORRECTION 177Figur
Page 196 and 197:
8.5 PREVENTIVE CYCLIC RETRANSMISSIO
Page 198 and 199:
8.6 SIGNALING LINK MANAGEMENT 181In
Page 200 and 201:
8.7 OVERVIEW OF MTP LEVEL 3 183Figu
Page 202 and 203:
8.8 MTP3 SIGNALING MESSAGE HANDLING
Page 204 and 205:
Page 206 and 207:
Page 208 and 209:
8.9 MTP3 SIGNALING NETWORK MANAGEME
Page 210 and 211:
Page 212 and 213:
Page 214 and 215:
Page 216 and 217:
8.10 ACRONYMS 199H1 Message heading
Page 218 and 219:
9TELEPHONE USER PARTThe Telephone U
Page 220 and 221:
9.2 CALL-CONTROL MESSAGES AND SIGNA
Page 222 and 223:
Page 224 and 225:
Page 226 and 227:
Page 228 and 229:
9.3 BASIC SIGNALING SEQUENCES 211TA
Page 230 and 231:
9.3 BASIC SIGNALING SEQUENCES 213Wh
Page 232 and 233:
9.3 BASIC SIGNALING SEQUENCES 215On
Page 234 and 235:
9.4 TUP SUPPORT OF ADDITIONAL SERVI
Page 236 and 237:
9.4 TUP SUPPORT OF ADDITIONAL SERVI
Page 238 and 239:
9.5 OTHER TUP PROCEDURES, MESSAGES,
Page 240 and 241:
9.5 OTHER TUP PROCEDURES, MESSAGES,
Page 242 and 243:
9.6 VERSIONS OF TUP SIGNALING 2259.
Page 244 and 245:
9.7 ACRONYMS 227ACM Address Complet
Page 246:
9.8 REFERENCES 229SAOSECSHPSISIFSIM
Page 249 and 250:
232 DIGITAL SUBSCRIBER SIGNALING SY
Page 251 and 252:
Page 253 and 254:
Page 255 and 256:
Page 257 and 258:
Page 259 and 260:
Page 261 and 262:
Page 263 and 264:
Page 265 and 266:
Page 267 and 268:
Page 269 and 270:
TABLE 10.3-3 Information Elements i
Page 271 and 272:
Page 273 and 274:
Page 275 and 276:
Page 277 and 278:
Page 279 and 280:
Page 281 and 282:
Page 283 and 284:
Page 285 and 286:
Page 287 and 288:
Page 289 and 290:
Page 291 and 292:
Page 294 and 295:
11ISDN USER PARTThis chapter resume
Page 296 and 297:
11.2 ISUP MESSAGES, FORMATS, AND PA
Page 298 and 299:
Page 300 and 301:
Page 302 and 303:
TABLE 11.2-2 Parameters in ISUP Cal
Page 304 and 305:
Page 306 and 307:
Page 308 and 309:
Page 310 and 311:
Page 312 and 313:
Page 314 and 315:
11.3 SIGNALING FOR CALLS BETWEEN IS
Page 316 and 317:
11.3 SIGNALING FOR CALLS BETWEEN IS
Page 318 and 319:
11.4 CALLS INVOLVING ANALOG SUBSCRI
Page 320 and 321:
11.4 CALLS INVOLVING ANALOG SUBSCRI
Page 322 and 323:
11.5 END-TO-END SIGNALING 305In the
Page 324 and 325:
11.5 END-TO-END SIGNALING 307Figure
Page 326 and 327:
11.6 OTHER SIGNALING PROCEDURES 309
Page 328 and 329:
Page 330 and 331:
Page 332 and 333:
Page 334 and 335:
11.7 SIGNALING PROCEDURES FOR FAILE
Page 336 and 337:
11.8 ISUP SIGNALING IN THE INTERNAT
Page 338 and 339:
11.9 ISUP SIGNALING IN THE UNITED S
Page 340 and 341:
11.10 ACRONYMS 323transferred trans
Page 342 and 343:
11.11 REFERENCES 325SCCP Signaling
Page 344 and 345:
12SIGNALING IN CELLULARMOBILE TELEC
Page 346 and 347:
12.1 INTRODUCTION TO CELLULAR MOBIL
Page 348 and 349:
Page 350 and 351:
Page 352 and 353:
Page 354 and 355:
Figure 12.2-1. Transmission of mess
Page 356 and 357:
12.3 INTRODUCTION TO AMPS SIGNALING
Page 358 and 359:
12.3 INTRODUCTION TO AMPS SIGNALING
Page 360 and 361:
12.4 AMPS MESSAGE FORMATS AND PARAM
Page 362 and 363:
Page 364 and 365:
Page 366 and 367:
Page 368 and 369:
Page 370 and 371:
12.5 AMPS SIGNALING PROCEDURES 353s
Page 372 and 373:
12.5 AMPS SIGNALING PROCEDURES 355p
Page 374 and 375:
12.6 SIGNALING IN IS-54 CELLULAR SY
Page 376 and 377:
Page 378 and 379:
Page 380 and 381:
Page 382 and 383:
12.7 INTRODUCTION TO THE GSM CELLUL
Page 384 and 385:
Page 386 and 387:
Page 388 and 389:
Page 390 and 391:
12.8 SIGNALING BETWEEN MOBILE AND N
Page 392 and 393:
Page 394 and 395:
Page 396 and 397:
Page 398 and 399:
12.9 LAYER 3 MESSAGES ON THE Um INT
Page 400 and 401:
12.9 LAYER 3 MESSAGES ON THE Um INT
Page 402 and 403:
12.10 ACRONYMS 385FVCGAWGSMIMEIIMSI
Page 404:
12.11 REFERENCES 3875. Public Land
Page 407 and 408:
390 AIR INTERFACE SIGNALING IN CDMA
Page 409 and 410:
Page 411 and 412:
Page 413 and 414:
Page 415 and 416:
Page 417 and 418:
Page 419 and 420:
Page 421 and 422:
Page 423 and 424:
Page 425 and 426:
Page 427 and 428:
Page 429 and 430:
Page 431 and 432:
TABLE 13.3-1 Forward CDMA Physical
Page 433 and 434:
Page 435 and 436:
Page 437 and 438:
Page 439 and 440:
Page 441 and 442:
Page 443 and 444:
Page 445 and 446:
Page 447 and 448:
Page 449 and 450:
Page 451 and 452:
Page 453 and 454:
Page 455 and 456:
Page 457 and 458:
Page 459 and 460:
Page 461 and 462:
Page 463 and 464:
Page 465 and 466:
Page 467 and 468:
Page 469 and 470:
Page 471 and 472:
Page 473 and 474:
Page 476 and 477:
14INTRODUCTION TOTRANSACTIONSThe TU
Page 478 and 479:
14.2 SS7 ARCHITECTURE FOR TRANSACTI
Page 480:
CCIS Common-channel interoffice sig
Page 483 and 484:
466 SIGNALING CONNECTION CONTROL PA
Page 485 and 486:
Page 487 and 488:
TABLE 15.2-2 Parameters in SCCP Mes
Page 489 and 490:
Page 491 and 492:
Page 493 and 494:
Page 495 and 496:
Page 497 and 498:
Page 499 and 500:
Page 501 and 502:
Page 503 and 504:
Page 505 and 506:
Page 507 and 508:
Page 509 and 510:
Page 511 and 512:
Page 514 and 515:
16TRANSACTION CAPABILITIESAPPLICATI
Page 516 and 517:
16.1 INTRODUCTION 499Figure 16.1-1.
Page 518 and 519:
16.1 INTRODUCTION 501TABLE 16.1-1 T
Page 520 and 521:
16.1 INTRODUCTION 503TABLE 16.1-4Co
Page 522 and 523:
16.2 TCAP FORMATS AND CODING 505ASN
Page 524 and 525:
16.2 TCAP FORMATS AND CODING 507TAB
Page 526 and 527:
16.2 TCAP FORMATS AND CODING 509Fig
Page 528 and 529:
16.3 TRANSACTION AND INVOKE IDENTIT
Page 530 and 531:
16.4 U.S. NATIONAL TCAP 513TABLE 16
Page 532 and 533:
16.6 ACRONYMS 51516.6 ACRONYMSAC Ap
Page 534 and 535:
17TRANSACTIONS ININTELLIGENT NETWOR
Page 536 and 537:
17.1 INTRODUCTION TO INTELLIGENT NE
Page 538 and 539:
17.2 CALL MODELS AND TRIGGERS 521so
Page 540 and 541:
17.2 CALL MODELS AND TRIGGERS 523is
Page 542 and 543:
17.2 CALL MODELS AND TRIGGERS 525th
Page 544 and 545:
17.2 CALL MODELS AND TRIGGERS 527en
Page 546 and 547:
17.3 AIN MESSAGES AND TRANSACTIONS
Page 548 and 549:
Page 550 and 551:
Page 552 and 553:
17.4 AIN 0.1 PARAMETERS 535Figure 1
Page 554 and 555:
17.4 AIN 0.1 PARAMETERS 537Bits DC.
Page 556 and 557:
17.4 AIN 0.1 PARAMETERS 539Par.19 P
Page 558 and 559:
17.5 CODING OF DATA ELEMENTS 541Par
Page 560 and 561:
17.6 MESSAGES AND PARAMETERS 543TAB
Page 562 and 563:
17.6 MESSAGES AND PARAMETERS 545TAB
Page 564 and 565:
17.6 MESSAGES AND PARAMETERS 54717.
Page 566 and 567:
17.7 AIN SERVICES 549Snapshot Monit
Page 568 and 569:
17.7 AIN SERVICES 551We assume that
Page 570 and 571:
17.7 AIN SERVICES 553info_analyzed
Page 572 and 573:
17.9 REFERENCES 555GTA Global title
Page 574 and 575:
18INTELLIGENT NETWORKAPPLICATION PA
Page 576 and 577:
18.1 INTRODUCTION 559Figure 18.1-2
Page 578 and 579:
18.2 CALL MODELS AND TRIGGERS 561.
Page 580 and 581:
18.3 CAPABILITY SETS 563CS-2. This
Page 582 and 583:
18.4 INAP SIGNALING 565TABLE 18.4-1
Page 584 and 585:
18.4 INAP SIGNALING 567SACF. MACF a
Page 586 and 587:
18.4 INAP SIGNALING 569TABLE 18.4-5
Page 588 and 589:
18.5 ETSI INAP 571At the end of the
Page 590 and 591:
18.7 REFERENCES 573SSPT_BCSNTCTCAPU
Page 592:
18.7 REFERENCES 57544. Interface Re
Page 595 and 596:
578 MOBILE APPLICATION PART19.1 INT
Page 597 and 598:
580 MOBILE APPLICATION PARTMSCs (d)
Page 599 and 600:
582 MOBILE APPLICATION PARTASEs in
Page 601 and 602:
584 MOBILE APPLICATION PARTOn recei
Page 603 and 604:
586 MOBILE APPLICATION PARTFigure 1
Page 605 and 606:
588 MOBILE APPLICATION PARTunrecogn
Page 607 and 608:
Page 609 and 610:
Page 611 and 612:
Page 613 and 614:
596 MOBILE APPLICATION PART19.4.3 M
Page 615 and 616:
Page 617 and 618:
600 MOBILE APPLICATION PART19.5.3 E
Page 619 and 620:
602 MOBILE APPLICATION PARTPar.4 Au
Page 621 and 622:
604 MOBILE APPLICATION PARTPar.11 D
Page 623 and 624:
606 MOBILE APPLICATION PARTPar.22 S
Page 625 and 626:
608 MOBILE APPLICATION PART19.6.2 E
Page 627 and 628:
Page 629 and 630:
Page 631 and 632:
614 MOBILE APPLICATION PARTby a “
Page 633 and 634:
616 MOBILE APPLICATION PARTVLR now
Page 635 and 636: 618 MOBILE APPLICATION PARTFigure 1
Page 641 and 642: 624 MOBILE APPLICATION PARTMAP_COMP
Page 643 and 644: 626 MOBILE APPLICATION PARTThe VLR
Page 645 and 646: 628 MOBILE APPLICATION PARTISDNITUI
Page 648 and 649: 20INTRODUCTION TO PACKETNETWORKS AN
Page 650 and 651: 20.1 PACKET-BASED COMMUNICATION 633
Page 660 and 661: 20.2 THE TCP/IP PROTOCOL SUITE 643F
Page 662 and 663: 20.2 THE TCP/IP PROTOCOL SUITE 645T
Page 664 and 665: 20.2 THE TCP/IP PROTOCOL SUITE 647c
Page 666 and 667: 20.2 THE TCP/IP PROTOCOL SUITE 649s
Page 668 and 669: 20.3 INTRODUCTION TO VoIP 651There
Page 670 and 671: 20.3 INTRODUCTION TO VoIP 653Voice
Page 672 and 673: 20.3 INTRODUCTION TO VoIP 655some V
Page 674 and 675: 20.3 INTRODUCTION TO VoIP 657On the
Page 676 and 677: 20.4 LOWER LAYER PROTOCOLS FOR VoIP
Page 682 and 683: 20.5 ACRONYMS 66520.5 ACRONYMSAAA A
Page 684 and 685: 20.6 REFERENCES 66720.6 REFERENCES1
Page 688 and 689: 21.2 THE H.323 PROTOCOL 67121.2 THE
Page 690 and 691: 21.2 THE H.323 PROTOCOL 673TABLE 21
Page 696 and 697: 21.2 THE H.323 PROTOCOL 679Recommen
Page 698 and 699: 21.3 THE SESSION INITIATION PROTOCO
Page 708 and 709: 21.4 THE GATEWAY CONTROL PROTOCOL 6
Page 716 and 717: 21.5 THE SIGNALING TRANSPORT (SIGTR
Page 724 and 725: 21.6 THE BEARER INDEPENDENT CALL-CO
Page 734 and 735: 21.7 ACRONYMS 717FSN Forward sequen
Page 736 and 737:
21.8 REFERENCES 7196. Generic Funct
Page 738 and 739:
22SIGNALING IN ATM NETWORKSATM, or
Page 740 and 741:
22.1 INTRODUCTION TO ATM NETWORKS A
Page 742 and 743:
22.1 INTRODUCTION TO ATM NETWORKS A
Page 744 and 745:
22.2 ATM LAYERS AND PROTOCOL STACK
Page 746 and 747:
22.3 LOWER LAYERS 729Figure 22.2-3.
Page 748 and 749:
22.3 LOWER LAYERS 73122.3.2 AAL/SAA
Page 750 and 751:
22.4 INTRODUCTION TO ATM SIGNALING
Page 752 and 753:
22.5 SIGNALING AT THE UNI INTERFACE
Page 754 and 755:
TABLE 22.5-2 Variable-Length Inform
Page 756 and 757:
22.6 THE PNNI PROTOCOL 739Figure 22
Page 758 and 759:
TABLE 22.6-1 Variable-Length Inform
Page 760 and 761:
22.7 THE B-ISUP SIGNALING PROTOCOL
Page 762 and 763:
22.7 THE B-ISUP SIGNALING PROTOCOL
Page 764 and 765:
22.9 ATM ADDRESSING 747administrati
Page 766 and 767:
22.10 ACRONYMS 749IEIETFISUPITUITU-
Page 768:
22.11 REFERENCES 75123. Private Net
Page 771 and 772:
754 INDEXAddress signalsAsynchrouno
Page 773 and 774:
756 INDEXApplication entity (AE)Int
Page 775 and 776:
758 INDEXBearer services (continued
Page 777 and 778:
760 INDEXCalled Address derivation,
Page 779 and 780:
762 INDEXCellular authentication an
Page 781 and 782:
764 INDEXClassless addressing, Inte
Page 783 and 784:
766 INDEXComponent portion, Transac
Page 785 and 786:
768 INDEXData link connections, Dig
Page 787 and 788:
770 INDEXDigital Subscriber Signali
Page 789 and 790:
772 INDEXError correction (continue
Page 791 and 792:
774 INDEXFour-wire circuits (contin
Page 793 and 794:
776 INDEXHome mobile switching cent
Page 795 and 796:
778 INDEXIntelligent networks (INs)
Page 797 and 798:
780 INDEXIS-95 code-division multip
Page 799 and 800:
782 INDEXLine signals. See also Sup
Page 801 and 802:
784 INDEXMessage acceptance, cellul
Page 803 and 804:
786 INDEXMobile switching centers (
Page 805 and 806:
788 INDEXOptical carrier (OC), sync
Page 807 and 808:
790 INDEXPhysical channels, cdma200
Page 809 and 810:
792 INDEXQ.931 ISDN protocol (conti
Page 811 and 812:
794 INDEXResponse to acknowledgment
Page 813 and 814:
796 INDEXService Indicator Octet (S
Page 815 and 816:
798 INDEXSignaling network manageme
Page 817 and 818:
800 INDEXSignaling System No. 7 (SS
Page 819 and 820:
802 INDEXStored-program controlled
Page 821 and 822:
804 INDEXTandem exchangeinterconnec
Page 823 and 824:
806 INDEXTimeoutspublic office dial
Page 825 and 826:
808 INDEXTrunk groups (TGs) (contin
Page 827 and 828:
810 INDEXVoice over Internet Protoc
Page 829 and 830:
Introduction to Communications Engi
show all

Download

Create successful ePaper yourself

Delete template?

Save as template?