the session initiation protocol sip
Tài liệu Voice over IP Open-Source Platforms and the Session Initiation Protocol doc
... the number of bits in a transmission unit that is included with the unit so the receiver can check to see whether the same number of bits arrived CIR (committed information rate): describes the ... get the data Frame: data structure that collectively represents the transmission stream (headers, data, and the trailer) and provides the information necessary for the correct delivery of the ... Interface: point in the system where the rules, control codes, formats, and information direction (as dictated by the protocol) are implemented Interior protocols: routing protocol used within/interior...
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Tài liệu Voice over IP Open-Source Platforms and the Session Initiation Protocol pptx
... parties The third protocol focuses on the actual transport of the media (e.g., voice or video) The first signaling protocol was developed through the International Telecommunications Union (ITU-T) The ... All rights reserved Page Session Initiation Protocol (SIP) SIP Gains Support from the Cellular (Mobile Wireless) Community SIP s popularity has grown enormously over the past few years A big ... wireless standard, called cdma2000 The 3GPP2 is in the process of adopting the 3GPP IMS framework, which means they also see the significance of SIP They refer to their IMS innovation as Multi-Media...
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internet communications using sip delivering voip and multimedia services with session initiation protocol
... of the IETF: The Internet is the service.” The Session Initiation Protocol Is the Standard for VoIP and Multimedia Communications Another change from the first edition of this book is the Session ... Consolidation: The Internet Voice over IP Presence The Dial Tone for the Twenty-First Century? The Value Proposition of SIP SIP Is Not a Miracle Protocol The Short History of SIP References in This Book SIP ... picking the right phone number or URI Presence may, therefore, replace the dial tone used in telephony for well over 100 years The Value Proposition of SIP SIP is not just another protocol SIP redefines...
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giao thức khởi tạo phiên sip (session initiation protocol)
... nhận • Các tin SIP có khuôn dạng text, tương tự HTTP Mào đầu tin SIP tương tự HTTP SIP hỗ trợ MIME (một số chuẩn email) III HOẠT ĐỘNG CỦA SIP Thiết lập huỷ gọi SIP 11 Phiên gọi SIP điện thoại ... đa chiều SIP (Session Initiation Protocol- Giao thức khởi tạo phiên) giao thức điều khiển lớp ứng dụng mà thiết lập, chuyển đổi kết thúc phiên đa phương tiện điện thoại Internet SIP mời thành ... sở liệu ánh xạ sip: bob@b.com thành thứ tương tự sip: bob@1.2.3.4:5060 Vùng sở liệu sau sử dụng proxy server B Khi Proxy nhận lời mời cho sip: bob@b.com, tìm kiếm vùng sở liệu Nó tìm sip: bob@1.2.3.4:5060...
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Giao thức sip trong voip( session initiation protocol-giao thức báo hiệu điều khiển)
... thức SIP Tổng quan RFC Tổng quan giao thức SIP Nguồn gốc phát triển SIP II Các thành phần bên mạng SIP SIP User Agent SIP Server Mối liên hệ thành phần mạng SIP Bản tin SIP 4.1 SIP Response 4.2 SIP ... thành phần bên mạng SIP : Thành phần SIP : bao gồm SIP User Agent ( UA ) SIP server SIP User Agent: SIP UA thiết bị đầu cuối điểm cuối dialog : SIP UA gửi - nhận yêu cầu trả lời SIP , điểm cuối ... khác SIP ví dụ SIP- T cho liên vận PSTN -SIP- PSTN MSCML (Media Server Control Markup Language) cho dịch vụ hội nghị Sự phổ cập SIP dẫn tới việc loạt nhóm làm việc liên quan đến SIP thành lập Nhóm SIPPING...
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Session Initiation Protocol
... 5060 If the protocol type is not listed in the request SIP URL, the client must first attempt to connect using User Datagram Protocol (UDP) and then Transmission Control Protocol (TCP) The client ... for Some Key SIP Headers Explanation Identifies the recipient of the request Indicates the initiator of the request Describes the nature of the call Indicates the path taken by the request Uniquely ... includes a session description in the ACK request, no additional parameters are used in the session If a session description is absent, the session parameters in the INVITE request are used as the default...
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Báo cáo hóa học: " Research Article A Two-Layered Mobility Architecture Using Fast Mobile IPv6 and Session Initiation Protocol" pot
... Session initiation protocol SIP is a protocol developed in the IETF by the multiparty multimedia session control (MMUSIC) for establishing multimedia session SIP is a text-based protocol whose main ... updated session description protocol (SDP) to the correspondent node without going through intermediate SIP proxies The INVITE request will inform the remote user of the change in the session ... correspondent node The SIP Re-INVITE message initiates the registration within the SIP registrar at the home network of the mobile node and carries the updated SDP parameters to the CN As a result,...
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Tài liệu Configure Multicast Routing on the RSM using the PIM DM Protocol docx
... should have the stream activated on the client before executing these commands This will give you the full effect of the troubleshooting information a Show the CAM entries in the DLSwitch The content ... compare it to the configuration at the end of the lab Don’t worry about little differences because the router will place a number of its own configuration commands in Configure the CORP with the following ... Your main focus is to verify that the switch will function as directed Configure the DLRouter with the following information: a Configure the hostname DLRouter on the 4006 L3 module Router(config)#hostname...
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Tài liệu Configure Multicast Routing on the RSM using the PIM SM Protocol pptx
... Branch#show run e Set the PIM Rendezvous Point (RP) address The path to every receiver in the multicast group from the RP is the shortest path tree Assume the RP is the receiver of the multicast traffic ... the PIM Rendezvous Point (RP) address The path to every receiver in the multicast group from the RP is the shortest path tree Assume the RP is the receiver of the multicast traffic DLRouter(config)#ip ... indicated in the graphic below e Connect the IP/TV multicast client PC to any port on the ALSwitch Ensure the IP address of the client PC is changed to 10.2.1.2/24 with a gateway of 10.2.1.1 Use the...
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The Greenhouse Gas Protocol - The GHG Protocol for Project Accounting doc
... 2004; and • the GHG Protocol for Project Accounting (this document) PA R T I CHAPTER 1: 1.1 The GHG Protocol for Project Accounting The GHG Protocol for Project Accounting (Project Protocol) provides ... maximum transparency when justifying the basis of such decisions and fulfilling the Project Protocol s requirements 1.3 Overview of the Project Protocol The Project Protocol has four parts Part I presents ... to help project developers use the Project Protocol These tools will be available on the GHG Protocol website at www.ghgprotocol.org 1.7.1 GHG PROJECT TYPOLOGY The GHG Project Typology provides...
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The Greenhouse Gas Protocol: A Corporate Accounting and Reporting Standard pdf
... of the organization follow the same consolidation policy In the first step, the management of the parent company has to decide on a consolidation approach (i.e., either the equity share or the ... code), the number of customers in their car, the number of other stores they intended to visit at that shopping center that day, and whether they had access to public transportation to the store ... changes occur during the middle of the year, the base year emissions should be recalculated for the entire year, rather than only for the remainder of the reporting period after the structural change...
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Báo cáo khoa học: Sequences downstream of the transcription initiation site are important for proper initiation and regulation of mouse ribonucleotide reductase R2 gene transcription ppt
... indicated by the upper arrow to the left of the autoradiograph) and the adenovirus major late promoter ligated to a shorter G-less cassette (product indicated by the lower arrow to the left of the autoradiograph) ... therefore analyzed the sequence of the R2 promoter and the 5¢-UTR, and compared it to the corresponding region in the human R2 gene We could identify a potentially interesting palindrome in the ... oligonucleotide including the transcription start and the downstream sequence from of the mouse R2 gene The protein-DNA complex is indicated by the arrow to the right of the autoradiograph Lanes...
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Internet Time Synchronization: the Network Time Protocol pdf
... system The offset of two clocks is the time difference between them, while the skew is the frequency difference between them The reliability of a timekeeping system is the fraction of the time ... along the path, but assuming the skew between the server and peer clocks is relatively small, let (δ, θ) represent the delay and offset when the path is otherwise idle and thus the true values The ... trimmed-mean statistics The results show consistently lower errors for the minimum filter when compared the other algorithms Perhaps the most dramatic result with the minimum filter is the greatly reduced...
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Báo cáo khoa học: The potyviral virus genome-linked protein VPg forms a ternary complex with the eukaryotic initiation factors eIF4E and eIF4G and reduces eIF4E affinity for a mRNA cap analogue ppt
... indirectly the complex formation using the cap analogue m7GDP There are considerable discrepancies between the affinities of the cap analogue published so far In the absence of VPg, the value of the ... proceeds, the amount of VPg increases in the infected cell The stoichiometry of the viral particle assembly is of the order of 2000 capsid proteins for one VPg [31] Therefore, the synthesis and ... RNA could be achieved through the 5¢ VPg instead of the cap structure The VPg–eIF4E–eIF4G–PABP complex would bring together the 3¢ poly(A) and the 5¢ VPg ends of the viral RNA As it has been reported...
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Báo cáo khoa học: A functional polymorphism at the transcriptional initiation site in b2-glycoprotein I (apolipoprotein H) associated with reduced gene expression and lower plasma levels of b2-glycoprotein I docx
... disequilibrium between the )1CfiA and Trp316Ser sites (P < 0.0001) Of the 21 individuals with the Trp316Ser mutation, 20 had the )1CfiA mutation On the other hand, of the 16 individuals with the Cys306Gly ... with the human b2GPI sequence where the TFIID sequences at the transcriptional initiation site are conserved between the two species, and are underlined and marked with the parallel bars (B) Synthetic ... levels: the promoter region, splice junctions and the coding region In our extensive survey of the coding region and the intron–exon boundaries, we have not found causative mutations, other than the...
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Báo cáo sinh học: " The internal initiation of translation in bovine viral diarrhea virus RNA depends on the presence of an RNA pseudoknot upstream of the initiation codon" doc
... stressing the importance of these regions for translation [2] The results concerning the 5' UTR boundaries of the BVDV IRES parallel the results reported for the mutational analysis of the closely ... used Furthermore, control vectors devoid of an IRES in the intercistronic region or carrying the inhibitory stemloop in the 5'UTR of the dicistronic mRNA were included into the experiments The cell ... included the determination of the borders of the BVDV IRES of the non-cytopathic SD-1 strain The BVDV 5' UTR is 385 nucleotides in length We found, that the BVDV IRES encompasses about 80% of the...
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Báo cáo hóa học: " The internal initiation of translation in bovine viral diarrhea virus RNA depends on the presence of an RNA pseudoknot upstream of the initiation codon" ppt
... stressing the importance of these regions for translation [2] The results concerning the 5' UTR boundaries of the BVDV IRES parallel the results reported for the mutational analysis of the closely ... used Furthermore, control vectors devoid of an IRES in the intercistronic region or carrying the inhibitory stemloop in the 5'UTR of the dicistronic mRNA were included into the experiments The cell ... included the determination of the borders of the BVDV IRES of the non-cytopathic SD-1 strain The BVDV 5' UTR is 385 nucleotides in length We found, that the BVDV IRES encompasses about 80% of the...
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báo cáo khoa học: " A realistic evaluation: the case of protocol-based care" docx
... the evidence review using the principles of realist synthesis [26-28] Using this approach ensured the study had methodological and theoretical integrity Page of 14 The first stage of the synthesis ... to others There are questions about whether it may be the components or characteristics of the particular protocol, or the process of implementation that influence impact, or both However, there ... theory at the start of the evaluation process through the development of conjectured CMO threads; they are the theories of change that one tests and refines throughout the evaluation process The potential...
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