【正文】 munications Research Laboratories無線寬頻整合多媒體通訊技術(shù)SIP Telephony FeaturesvBasic telephony features216。Call forwarding busy (CFB)216。Auto recallvApplication/Media server functions216。Make Telephone Number Bee a Domain Name in Inter216。IETF, ITUT, US ENUM Form, Europe, …216。Enterprise ENUM: Enhance Enterprise Telem Service49工業(yè)技術(shù)研究院電腦與通訊工業(yè)研究所Industrial Technology Research InstituteComputer Communications Research Laboratories無線寬頻整合多媒體通訊技術(shù)What is ENUM ?ENUMMechanism NumberDomain Name System (DNS)URI(ServiceHost)ENUM is a Mechanism to Translate an Number into A List of URI (ServiceHost)So that An IP User Can be Accessed by Number.Problem: How to Address (or Locate) a User in IP World from IP/PSTN Network ?50工業(yè)技術(shù)研究院電腦與通訊工業(yè)研究所Industrial Technology Research InstituteComputer Communications Research Laboratories無線寬頻整合多媒體通訊技術(shù)Basic Operation of ENUM“Call setup”Sipsip:Query.?Dial+4686859131DNSServerSip serverGatewayResponsesip:Source: IETF51工業(yè)技術(shù)研究院電腦與通訊工業(yè)研究所Industrial Technology Research InstituteComputer Communications Research Laboratories無線寬頻整合多媒體通訊技術(shù)ENUM Domain52工業(yè)技術(shù)研究院電腦與通訊工業(yè)研究所Industrial Technology Research InstituteComputer Communications Research Laboratories無線寬頻整合多媒體通訊技術(shù)Tier0 Top Level Domain (TLD)vThe Choice of Common Designated Domain fir ENUM Tier0 is Undecided and is Proving Controversial216。 China, France, Germany, Syria and Spain Objected to ARPA as TLD for political reason ? to reinforce the infrastructure of Inter governance Remendation167。 。Runs the DNS server for a specific domain name216。Registrar verify customer data, do billing, and send data to registry when delegation is to be done, changed or cancelled58工業(yè)技術(shù)研究院電腦與通訊工業(yè)研究所Industrial Technology Research InstituteComputer Communications Research Laboratories無線寬頻整合多媒體通訊技術(shù)ITUT ENUM Activities59工業(yè)技術(shù)研究院電腦與通訊工業(yè)研究所Industrial Technology Research InstituteComputer Communications Research Laboratories無線寬頻整合多媒體通訊技術(shù)IETF ENUM ActivitiesvTelephone Number Mapping (ENUM) WG216。Related ENUM Activities after RFC 2916167。 New Issues Being Considered:– Extent Same URI in RFC 2916 for Different Service187。 Adding Presence as an ENUM service167。Multiple NAPTR ? service: URIvMultiple IP Services Behind one ENUM216。Webbased Service Management for ENUM Users216。VoIP to acquire user base167。ADSL/Cable + VoIP as the access work63工業(yè)技術(shù)研究院電腦與通訊工業(yè)研究所Industrial Technology Research InstituteComputer Communications Research Laboratories無線寬頻整合多媒體通訊技術(shù)DOC/NTIA Backs ENUMvNTIA(National Telemunications Information Administration), US Department of Commercev“…Because of the potential benefits of ENUM, …(NTIA) believes that the United States should seize this opportunity and take steps to participate in , …”216。ENUMenabled IP services to generate revenuevCellular operators216。Network service providers independent216。Service Realization for ASP216。 Location Number Portability, using DNS as the source167。Related ENUM Activities after RFC 2916 (Cont.)167。 ENUM Administrative and Operational Procedures– Registration and Provisioning, Validation and Authentication– Operational Privacy, Security Issues and Procedure167。 RFC 2915, “The naming authority pointer (NAPTR) DNS resource record”, August, 2023167。Provide ENUM Registration to ENUM Users216。 Tier 3(Depending onthe application) Tier 0(RIPE)... 。 TLD is open167。 US and some other countries, ISOC/IAB/IETF Support IETF Conclusion167。Public (Personalized) ENUM: Future Vision216。New Addressing Mechanism in IP World216。Voice mail216。Call waiting (CW)216。Basic off call (PSTN interworking)vEnhanced features216。Support parallel and sequential search216。Support Register216。Call Forwarding, Transfer, Hold, Consultation, …216。Support TCP and UDP216。ITRI will Host 15th SIPIT Sponsored by ETSI in Taiwan in August 202342工業(yè)技術(shù)研究院電腦與通訊工業(yè)研究所Industrial Technology Research InstituteComputer Communications Research Laboratories無線寬頻整合多媒體通訊技術(shù)CCL SIP User AgentvCCL SIP Protocol Stack216。April 2023 , sponsored by ETSI at Cannes, France216。Support Analog FXO Interface216。Fax Send / Receive216。PSTN Interworking (Megaco Interworking)216。Advanced Skillbased Routing ACD System216。SIPbased Application Server37工業(yè)技術(shù)研究院電腦與通訊工業(yè)研究所Industrial Technology Research InstituteComputer Communications Research Laboratories無線寬頻整合多媒體通訊技術(shù)IPPBXLAN/WLAN? IP Trunking? Rich PBX features? Inter Call CenterACD: Automatic Call Distribution38工業(yè)技術(shù)研究院電腦與通訊工業(yè)研究所Industrial Technology Research InstituteComputer Communications Research Laboratories無線寬頻整合多媒體通訊技術(shù)CCL IPPBX VONTEL (cont.)vEnterprise grade IPPBX216。Media Server, Application Server216。CTI / IPPBX216。IP Transport, IP Mobility and VoIP (. SIP) ProtocolvSIP Has Been Adopted by 3GPP for Session SignalingvSIP Telephony System Has Been Well AcceptedvWith SIP, Service Creation is Fast and Easy216。 Carry IM on Signaling Channel Big OverheadvPagermode vs. Session mode Instant Messaging216。(same as Call Establishment)vAfter the Call216。 A Picture with Call Subject, or167。Reference to Web/WAP Pages, mail, picturesvInteractive Games with SIP Signaling32工業(yè)技術(shù)研究院電腦與通訊工業(yè)研究所Industrial Technology Research InstituteComputer Communications Research Laboratories無線寬頻整合多媒體通訊技術(shù)Rich Call with SIPvBefore the Call216。WellRecognized IP Telephony SystemvInstant Messaging216。Call Control ServervMedia Gateway216。Hard to ExtendvSignaling Is Not Enough216。Limitation Being Applied for VoIP Infrastructure ApplicationsvArchitecture is Too Simple216。Enhance Data Network with VoIP Capability216。Original Voice Users167。Mandatory in Future AllIP NetworkvSIP Technologies Will Dominate216。SIP: Provide Telephony from IP’s Point of View9工業(yè)技術(shù)研究院電腦與通訊工業(yè)研究所Industrial Technology Resea