电信行业--无线宽频整合多媒体通讯技术

1、工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndustrial Technology Research InstituteComputer & Communications Research Laboratories来自来自 中国最大的资料库下载中国最大的资料库下载周勝鄰 博士工研院電通所網路技術組 組長2003. 11. 262工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndustrial Technology R

2、esearch InstituteComputer & Communications Research Laboratories無線寬頻整合多媒體通訊技術課程目的課程目的v 本課程將與您一起探討通訊產業中三個重要之發展趨勢v IP 電信(VoIP)逐漸成為未來通訊技術之主流, 不僅將對服務產業將發生變化, 而且也將為通訊產品產業帶來新契機;本課程將提供學員對此一領域做初步之介紹v ENUM為一項非常新的技術, 它將是推動 IP/ PSTN系統與服務整合的最大動力, 同時也將對網際網路之應用產生革命性之衝擊, 為人們使用日常生活之所有通訊服務帶來莫大之便利; 本課程將對此一最新技術及其發

3、展趨勢做深入淺出之說明v WLAN 之近年來成為無線通訊之熱門話題, 各企業甚至家庭開始積極建設WLAN, 此趨勢相信將持續幾年. 不過建設WLAN作何用途? Public WLAN 服務業者有無生存空間? WLAN 與 3G關係又是如何? 互補呢還是競爭?本課程最後一節將與您一起探討WLAN 與無線通訊系統之競合關係, 了解WLAN應用之發展趨勢3工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndustrial Technology Research InstituteComputer & Commu

4、nications Research Laboratories無線寬頻整合多媒體通訊技術課程大綱課程大綱vIP 電信技術的發展趨勢VoIP 的過去現在與未來VoIP 的技術發展-從H.323 到SIPSIP 的應用與發展趨勢vENUM - IP/PSTN整合之新趨勢 何謂ENUM? ENUM 服務機制vWLAN 應用服務的發展趨勢WLAN 之應用WLAN 與無線通訊系統之整合4工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndustrial Technology Research InstituteComput

5、er & Communications Research Laboratories無線寬頻整合多媒體通訊技術通訊產業幾個重要發展趨勢通訊產業幾個重要發展趨勢v VoIP 產業復甦, 有蓬勃發展趨勢 IP-Phone, Wi-Fi SIP Phone, Residential Gateway, IP-PBX, 日本 Yahoo BB, J-Phone, v Wireless LAN 蓬勃發展, 但服務商業模式尚待開發 技術演進迅速, 公司企業, 家用 Public WLAN, Cellular/WLAN 整合 ?v Wireless Data (Mobile Internet) 發展不如

6、預期 Mobile Data Voice SMS, MMS, v 3G 通訊系統前景不明 GPRS 3G ? Cdma2000-1x vs. WCDMA ?工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndustrial Technology Research InstituteComputer & Communications Research Laboratories来自来自 中国最大的资料库下载中国最大的资料库下载IP 電信技術的發展趨勢電信技術的發展趨勢6工業技術研究院工業技術研究院電腦與通訊工

7、業研究所Industrial Technology Research InstituteIndustrial Technology Research InstituteComputer & Communications Research Laboratories無線寬頻整合多媒體通訊技術Yahoo!BB VoIP Business ModelDSLAMSGatewayCall Agent / Softswitch VoIP TAOn-net call freeOff-net call 7.5 Yen/ 3 min.(1) Calls from PSTN(2) PSTN specific

8、 services, e.g. emergency callASDL + VoIPasThe First MilePOTS phones +PSTN phone numbers7工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndustrial Technology Research InstituteComputer & Communications Research Laboratories無線寬頻整合多媒體通訊技術VoIP 的過去的過去v Born of VoIP Industry VoIP Pho

9、ne - VocalTech 1995v H.323 Standard for VoIP Industry H.323 Was Proposed by ITU-T for Multimedia Communication over LAN in 1996 Adopted Quickly and Widely by Industries VoIP Gateway, Gatekeeper, Enterprise GW, IAD Mainly Used in Enterprise, Toll-by-Pass Applicationsv Market Slow Down Infrastructure

10、Bottleneck - Limitation of H.323 New Technologies Developed Users Hesitate to Buy H.323 Products Vendors Invest Much in H.3238工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndustrial Technology Research InstituteComputer & Communications Research Laboratories無線寬頻整合多媒體通訊技術VoIP 的

11、現在的現在v New Technologies Ready MGCP, MEGACO/H.248, SCTP/M3UA, SIP/SDP, IETF-like Protocolsv New Products Developed Most Upgraded from H.323 Products Support New Technologies as well as H.323 VoIP Infrastructure Softswitch, Trunk GW, SS7 Signaling GW (SS7 over IP) Market Re-Boomingv IETF Technologies

12、Dominate SIP Telephony Being Widely Accepted ENUM for IP/PSTN Convergence Being Developedv Softswitch vs. SIP Softswitch: Mainly for Class 4/5 Switch Replacement SIP: Provide Telephony from IPs Point of View9工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndustrial Technology Resear

13、ch InstituteComputer & Communications Research Laboratories無線寬頻整合多媒體通訊技術VoIP 的未來的未來vVoIP Infrastructure will Get Ready (How Soon ?)ENUM for IP/PSTN ConvergenceProduct and Service Start to BoomvIts Technologies Trend, Not Just for Cost SavingDriving Force of NGNMandatory in Future All-IP Networkv

14、SIP Technologies Will DominateSIP Telephony/CO Signaling/Multimedia Service/3GKey Technologies for IP/PSTN Convergence10工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndustrial Technology Research InstituteComputer & Communications Research Laboratories無線寬頻整合多媒體通訊技術Trends of Vo

15、IP TechnologiesH.323 SystemNext GenerationVoIP ProtocolsOpen Telephony ArchitectureInternet TelecomService TechnologieswMGCPwMEGACO/H.248wSIP/SDPwSS7 over IP (SCTP)w3GPP Open Service Arch.wISC SoftswitchwVoIP Call ModelingwAPI: Parlay, JAIN,.wIP-based SCPwIP-SCEwPretty Amazing New Services (PANS)VoI

16、P Technologiesfor 3G Core Network97 98 99 00 01 02 03 04 05 06Enterprise VoIP SystemsCarrier-gradeInternet Telecom. System3G All-IP CoreNetwork SystemApplicationsTechnologyComplexitywVoIP Gateway/GatekeeperwIP-PBXwIP-PhonewSoftswitchwSignaling GatewaywMedia Server&Gateway(IAD, Trunk G/W)wApplica

17、tion ServerwSIP-based SystemswIP-SCPwIP-SCEYearWorldTaiwan11工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndustrial Technology Research InstituteComputer & Communications Research Laboratories無線寬頻整合多媒體通訊技術IP/PSTN ConvergencePSTNSIP ProxyENUM Service SystemSIP PhoneSIP PhoneGat

18、ewaySoftswitchApplication ServerMediaServerSIPTelephonyH.323ENUMServersOperator1Operator2SIPSIPDNSIP Network12工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndustrial Technology Research InstituteComputer & Communications Research Laboratories無線寬頻整合多媒體通訊技術VoIP Services Applicat

19、ionsvPSTNs (Telecomm.s) Point of ViewEquip PSTN with VoIP ServicesOriginal Voice Users For Cost Saving, No Service EnhancementClass 4/5 Switch Replacement with SoftswitchNo Extra RevenuevISPs (IPs) Point of ViewEnhance Data Network with VoIP CapabilityAdditional Voice Service to Original Data Users

20、Even Voice/Data Integrated ServicesSIP Telephony + Application/Media Servers工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndustrial Technology Research InstituteComputer & Communications Research Laboratories来自来自 中国最大的资料库下载中国最大的资料库下载VoIP Technologies- From H.323 to SIP14工業技術研究

21、院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndustrial Technology Research InstituteComputer & Communications Research Laboratories無線寬頻整合多媒體通訊技術H.323 for VoIPvHas Been Adopted by Vendors for YearsvAlmost Current VoIP Products Support H.323vGatewayvGatekeepervTerminalvMCUPacket Base

22、d NetworkN-ISDNB-ISDNH.320TerminalH.321TerminalH.321TerminalH.310 terminaloperating inH.321 modeGSTNH.324TerminalH.322TerminalGuaranteedQoS LANSpeechTerminalSpeechTerminalV.70TerminalH.323MCUH.323TerminalH.323TerminalH.323TerminalH.323GatekeeperH.323GatewayPacket Based Network15工業技術研究院工業技術研究院電腦與通訊工業

23、研究所Industrial Technology Research InstituteIndustrial Technology Research InstituteComputer & Communications Research Laboratories無線寬頻整合多媒體通訊技術Challenges of H.323v H.323 Was Originally Proposed for LAN Environment Limitation Being Applied for VoIP Infrastructure Applicationsv Architecture is Too

24、 Simple Single Gateway to Interact with PSTN/GSM Suitable for Peer to Peer Communicationv Protocol is Too Complex Complicated Call Set-Up Signaling Hard to Extendv Signaling Is Not Enough Only DTMF is Specified No SS7 Signaling Capability Advanced Services are Limitedv Interoperability is Still an I

25、ssue16工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndustrial Technology Research InstituteComputer & Communications Research Laboratories無線寬頻整合多媒體通訊技術Gateway DecompositionSS7SignalingTrafficMedia GW (MG)Media GW Controller (MGC)Signaling GW (SG)H.323 GWMGC:Call Control, Call

26、Routing, Service Selection,SGInterface with SS7 and Translate to SS7 over IPMGDedicate for Media Translation and TransportationMGCP17工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndustrial Technology Research InstituteComputer & Communications Research Laboratories無線寬頻整合多媒體通訊技

27、術Media Gateway ControlSGCPTelcordiaMay 98MDCPAT&TDec 98Aug 00MEGACO/H.248IETF/ITU-TLevel3,.Aug 98IPDC 0.12IPDC 1.0Sept 98MGCP 1.0IPDC: IP Device Control ProtocolSGCP: Simple Gateway Control ProtocolMGCP: Media Gateway Control ProtocolMDCP: Media Device Control ProtocolMEGACO: Media GAteway Contr

28、ol(IETF Working Group)18工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndustrial Technology Research InstituteComputer & Communications Research Laboratories無線寬頻整合多媒體通訊技術MGCP/MEGACO/H.248vClient-Server ArchitecturevCall Agent (Media Gateway Controller)Call Control ServervMedia

29、GatewayDedicated for Media TransmissionTrunk/Access/Residential GWsvSignal GatewaySS7 InterfacingRTP StreamsSS7 (ISUP)SGWSGWSS7 (ISUP)COIP phoneIP phoneMGCPMGC(CA)MGC(CA)MGCP/MEGACOMGCP/MEGACO19工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndustrial Technology Research InstituteCo

30、mputer & Communications Research Laboratories無線寬頻整合多媒體通訊技術ISUP/MGCP/SIP InterworkingTelephoneTo SS7CACAIAMCreate ConnInviteCreate ConnACKIAMACMRingingACMANM200 OKACKANMACKTelephoneMGCPMGCPGatewayCACATo SS7GatewayIPACKModify ConnGWGWSS7SS7MGCPMGCPSIPRTP AudioSGMGCMGCSG20工業技術研究院工業技術研究院電腦與通訊工業研究所In

31、dustrial Technology Research InstituteIndustrial Technology Research InstituteComputer & Communications Research Laboratories無線寬頻整合多媒體通訊技術SS7 over IPISUPTCAPSCCPMAPMTPOSI LayersApplicationPresentationSessionTransportNetworkData LinkPhysicalINAPSS7 Protocol StackISUPTCAPSCCPMAPSCN Signaling Adapt

32、ation (M3UA, IUA, )Common Signaling Transport (SCTP)IPINAPSIGTRAN Protocol Stack21工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndustrial Technology Research InstituteComputer & Communications Research Laboratories無線寬頻整合多媒體通訊技術Softswitch System ArchitectureIN/SCPPSTNLocal Swit

33、chPSTNLocal SwitchSTPSS7 NetworkIP NetworkRTP StreamsMGCMGCTrunk GatewayTrunk GatewaySIP-TSGSGSIGTRANMegacoIP PhoneIP-PBXIP PhonePC Phone 9000Personalized VoIPService SystemBilling/Internet MessagingAuthentication/Directory/.22工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndustria

34、l Technology Research InstituteComputer & Communications Research Laboratories無線寬頻整合多媒體通訊技術What is A Softswitch ? Software, hardware and applications solutions typically come packaged in a single (proprietary) box. Non-standard solutions are expensive to implement and leave little room for innov

35、ation. Circuit-SwitchedTransportHardwareCall Control & SwitchingServices & ApplicationsPROPRIETARY Solutions are open standards-based products, and can come from multiple vendors. Customers are free to choose best-in-class products to build their network. Open standards enable innovation and

36、 in the long run can reduce costsSoft-SwitchedTransport HardwareSoftswitch Call ControlServices, Applications & Features (Management, Provisioning and Back Office)Open Protocols APIsOpen Protocols APIs23工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndustrial Technology Researc

37、h InstituteComputer & Communications Research Laboratories無線寬頻整合多媒體通訊技術Wireless System - From GSM to GPRSGPRSExternalDataNetworkPSTNHLRSGSNGGSNGbGnGiGSMPCUBSSGatewayMSC/VLRVisitedMSC/VLRAlways-On Wireless Packet Data Services24工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndus

38、trial Technology Research InstituteComputer & Communications Research Laboratories無線寬頻整合多媒體通訊技術IP Multimedia in 3G All-IP SystemApplications& ServicesSCPTEMGWMTUTRANRUuTESGSNMTBSS/GERANRUmMGWPSTNLegacy/ExternalGGSNHSSLegacy MobileSignaling NetworkR-SGWCSCFHSSMGCFGbIuIuIuIuAT-SGWEIRMSC Server

39、GMSC ServerApplications& ServicesCSCFMultimediaIP NetworksMRFGnGfGcGrGiGiGiMrMsMgMwGiMmMcMcMcDCCAPCAPCAPMhCxNcNbSignaling and Data InterfaceSignaling InterfaceAlternativeAccessNetworkSIP25工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndustrial Technology Research InstituteComp

40、uter & Communications Research Laboratories無線寬頻整合多媒體通訊技術SIP Telephony SystemUser Agent Client(Caller)User Agent Server(Callee)Proxy ServerProxy ServerProxy ServerRedirect ServerLocation ServerSIP RequestSIP ResponseRTP Media Stream26工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research Institut

41、eIndustrial Technology Research InstituteComputer & Communications Research Laboratories無線寬頻整合多媒體通訊技術SIP AttributesUser Agents l End Systems Acting on Behalf of a UserFClients(UAC) to initiate a SIP request and servers(UAS) to receive the request and return responsesServersl Proxy ServerRelay Ca

42、ll Signalingl Redirect Serverl Registrar Server: User Locations Tracking (Like HLR in GSM)Naming & Addressingl SIP URL, e-mail like: userhostl Exampleslsip:lsip:Jackie27工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndustrial Technology Research InstituteComputer &

43、 Communications Research Laboratories無線寬頻整合多媒體通訊技術SIP Operation in Proxy Mode28工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndustrial Technology Research InstituteComputer & Communications Research Laboratories無線寬頻整合多媒體通訊技術SIP Operation in Redirect Mode29工業技術研究院工業技術研究院電腦與通訊工業

44、研究所Industrial Technology Research InstituteIndustrial Technology Research InstituteComputer & Communications Research Laboratories無線寬頻整合多媒體通訊技術Protocol FormatINVITE sip:pgnexample.se SIP/2.0Via: SIP/2.0/UDP From: Fingal To: Patric Call-ID: Cseq: 1 INVITESubject: lunch at La Empenada?Content-Type

45、: applcation/sdpContent-Length: v=0o=ffl 53655765 2353687637 IN IP4 s=Chorizoc=IN IP4 m=audio 5004 RTP/AVP 0 3 5a=rtpmap:0 PCMU/8000SIPHeaderPayload:MIME type(SDP)30工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndustrial Technology Research InstituteComputer & Communi

46、cations Research Laboratories無線寬頻整合多媒體通訊技術SIP in IP Multimedia ArchitectureApplicationsSDP/SDPngHTTP SMTPSAPSIPRTSPTCP/SCTPTCP/UDPUDPRTP/RTCPRSVPIPv4/IPv6 with Mobility, DiffServ and Multicast Common Addressing, userdomain (URI & URL) Text-based and Encoding Format Same Request-Response Model, a

47、nd Response Codes MIME for Flexible Payload DNS for Address MappingEasy to Do Integrated Servicesby Combining more than OneProtocols31工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndustrial Technology Research InstituteComputer & Communications Research Laboratories無線寬頻整合多媒體通訊

48、技術SIP-Based ServicesvInternet TelephonyWell-Recognized IP Telephony SystemvInstant MessagingExchange of Content between Participants in Real-timevPresenceSubscription to and notification of changes in the comm. State of a usersvClick-to-Call from an Electronic DocumentSIP as tag Contained in Documen

49、tvTransport of MIME in SIP SignalingReference to Web/WAP Pages, mail, picturesvInteractive Games with SIP Signaling32工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndustrial Technology Research InstituteComputer & Communications Research Laboratories無線寬頻整合多媒體通訊技術Rich Call with

50、SIPv Before the Call Dynamic Phone Book Click-to-Talkv During Call Establishment Sending a Rich Clip, which Can be A Picture with Call Subject, or Special Ringing Tonev During the Call Document Sharing Information Pushv During Session Tear-Down (same as Call Establishment)v After the Call Be Able to

51、 Send Instant Message33工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndustrial Technology Research InstituteComputer & Communications Research Laboratories無線寬頻整合多媒體通訊技術SIP for Instant Messagingv Integration of Messaging, Presence, and Session-oriented Communicationv RFC 3428 -

52、 SIP Extension for Instant Messaging SIP MESSAGE Method - Pager-mode IM For small IM Exchange Carry IM on Signaling Channel - Big Overheadv Pager-mode vs. Session mode Instant Messaging Pager-mode - Each message is independent of any other message Session-mode - IMs are associated with a media sessi

53、on established by SIP INVITE methodv Message Session Relay Protocol (MSRP) - IETF Draft Support Session-mode IM between Endpoints34工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndustrial Technology Research InstituteComputer & Communications Research Laboratories無線寬頻整合多媒體通訊技術S

54、IP for IP ConvergencevIn 3G and NGN, the Focus Shift towards to All-IP ParadigmIP Transport, IP Mobility and VoIP (e.g. SIP) ProtocolvSIP Has Been Adopted by 3GPP for Session SignalingvSIP Telephony System Has Been Well AcceptedvWith SIP, Service Creation is Fast and EasyIP Protocols vs. Telecom Pro

55、tocol, like INBe able to Integrate Most IP-based ServicesvService Mobility and Personal ReachabilityBy SIP and IPv6 Mobility工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndustrial Technology Research InstituteComputer & Communications Research Laboratories来自来自 中国最大的资料库下载中国最大的资

56、料库下载CCL VoIP Solutions36工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndustrial Technology Research InstituteComputer & Communications Research Laboratories無線寬頻整合多媒體通訊技術CCL VoIP Solutionsv Protocols H.323, SGCP, MGCP/H.248, SIP, RTP/RTCP, SCTP and M3UA, v Related VoIP Products

57、 Technologies and Systems CTI / IP-PBX Softswitch / Media Gateway Controller SS7 over IP Signaling Gateway Trunk Gateway Media Server, Application Server SIP-based Presence/Messaging Serverv SIP-based IP Telephony SIP User Agent SIP Proxy Server SIP-based Application Server37工業技術研究院工業技術研究院電腦與通訊工業研究所

58、Industrial Technology Research InstituteIndustrial Technology Research InstituteComputer & Communications Research Laboratories無線寬頻整合多媒體通訊技術IP-PBXLAN/WLAN IP Trunking Rich PBX features Internet Call CenterACD: Automatic Call Distribution38工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research In

59、stituteIndustrial Technology Research InstituteComputer & Communications Research Laboratories無線寬頻整合多媒體通訊技術CCL IP-PBX - VONTEL (cont.)v Enterprise grade IP-PBX Rich Call Features Up to 5,000 devices BHCA: 60,000 (Busy Hour Call Attempt)v Multimedia IP Call Center Solution Platform Advanced Skill

60、-based Routing ACD System Rich 3-party Call Control API Support Voice / E-mail / Fax / and other media Provide both proprietary & TAPI 3.0 compatible APIsv Converged Switch System PSTN Interworking (Megaco Interworking) SIP Interworking H.323 Interworking Inter-Switch Call Setup39工業技術研究院工業技術研究院電腦與通訊工業研究所Industrial Technology Research InstituteIndustrial Technology Research InstituteComputer & Communications Research Laboratories無線寬頻整合多媒體通訊技術CCL IP-PBX - VONTEL (cont.)vMedia Serv