SIP Call Control : Transfer Robert.Sparks@wcom.com 47th IETF - PowerPoint PPT Presentation

Nov 18, 2022 •214 likes •272 views

SIP Call Control : Transfer Robert.Sparks@wcom.com 47th IETF draft-sparks-sip-cc-transfer-00 1 TRANSFER New Method Does not alter the original session Decoupled from media handling Does not terminate the session

SIP Call Control : Transfer Robert.Sparks@wcom.com 47th IETF draft-sparks-sip-cc-transfer-00 1
TRANSFER • New Method • Does not alter the original session • Decoupled from media handling • Does not terminate the session • Provides knowledge of successful transfers • Facilitates recovery of failed transfers 47th IETF draft-sparks-sip-cc-transfer-00 2
Succeeds Fails Transferor Transferee Transfer Transferor Transferee Transfer Target Target TRANSFER TRANSFER INVITE INVITE 200 OK 486 Busy Here ACK ACK 200 OK 603 Decline 47th IETF draft-sparks-sip-cc-transfer-00 3
Issues / Future Work • Rename method? PLEASE-INVITE? • Allow bodies? • Add knowing that an INVITE was due to a TRANSFER? • Add mechanism to prove identity of Transferor? • Guidelines compliance • Remove Requires header - Probe instead • Add short form for Transfer-To header 47th IETF draft-sparks-sip-cc-transfer-00 4

Recommend

What is an Interrupt? A transfer of program control that is not directed by the programmer

11/8/10 What is an Interrupt? A transfer of program control that is not directed by the programmer Like a phone call in the middle of a conversation Stop what you are doing, deal with the interruption, then continue where you

602 views • 11 slides

Remit #2 Elimination of Transfer and Settlement What does transfer mean? Transfer

Remit #2 Elimination of Transfer and Settlement What does transfer mean? Transfer is the process of moving members of the order of ministry from one Conference to another for the purpose of settlement, or call and settlement.

182 views • 16 slides

Industrial Transfer Learning Introduction to Industrial Transfer Learning Industrial Transfer

Industrial Transfer Learning Introduction to Industrial Transfer Learning Industrial Transfer Learning Motivation Machine Learning in Manufacturing Decision Support Automation Process Control Self-Optimization Predictive Quality Predictive

742 views • 24 slides

Interrupts Arduino, AVR, and deep dark programming secrets What is an Interrupt? A transfer

11/8/10 Interrupts Arduino, AVR, and deep dark programming secrets What is an Interrupt? A transfer of program control that is not directed by the programmer Like a phone call in the middle of a conversation Stop what you are

533 views • 32 slides

Locks Do Not Compose! Example Code Thread 1 Thread 2 class Account { transfer(A, B, 10);

Locks Do Not Compose! Example Code Thread 1 Thread 2 class Account { transfer(A, B, 10); transfer(B, A, 10); float balance; -> call A.lock() -> call B.lock() void deposit(float amt) { -> call B.lock() -> call A.lock()

684 views • 3 slides

1 Why Why flow flow control? control? sender

Lecture 7. Lecture 7. TCP mechanisms for: TCP mechanisms for: data transfer control / flow control error control congestion control Graphical examples (applet java) of several algorithms at:

589 views • 13 slides

Video Services Update Ben Fineman, Internet2 Internet2 Network Border Control Call Control

Video Services Update Ben Fineman, Internet2 Internet2 Network Border Control Call Control Bridging Switching Transcoding Border Control Call Control Bridging Resource Abstraction Why bother with video? Isnt Skype good

605 views • 27 slides

Topic #38 Transfer function to state-space Reference textbook : Control Systems, Dhanesh N.

ME 779 Control Systems Topic #38 Transfer function to state-space Reference textbook : Control Systems, Dhanesh N. Manik, Cengage Publishing, 2012 1 Transfer function to state-space Phase-variable and controller canonical forms

947 views • 36 slides

TCP recap Three phases 1. Connection setup 2. Data transfer Flow control dont

TCP recap Three phases 1. Connection setup 2. Data transfer Flow control dont overwhelm the receiver ARQ one outstanding packet Go-back-N, selective repeat -- sliding window of W packets Tuning flow control (ack

844 views • 57 slides

Lecture 8 Transfer Function Definition Block Diagram Manipulation Process Control Prof. Kannan

Lecture 8 Transfer Function Definition Block Diagram Manipulation Process Control Prof. Kannan M. Moudgalya IIT Bombay Tuesday, 6 August 2013 1/30 Process Control Transfer functions, block diagram manipulation Outline 1. Formal definition

795 views • 30 slides

Interprocedural control-flow analysis Nate Nystrom CS 711 6 Sep 05 Call graphs Statically

Interprocedural control-flow analysis Nate Nystrom CS 711 6 Sep 05 Call graphs Statically compute a precise call graph Maps call sites to functions called Challenge: Methods Higher-order functions Can use precise call

425 views • 19 slides

Transfer of Children with TBI for Definitive Care, Particularly Without Airway Control, is a Risk

Transfer of Children with TBI for Definitive Care, Particularly Without Airway Control, is a Risk Factor for Mortality Meredith Halling, MS, Laura D. Cassidy, MS, PhD, Allison Ertl, MS, and Sergey Tarima, PhD, Medical College of Wisconsin,

182 views • 15 slides

Nonlinear Control Lecture # 13 Passivity Nonlinear Control Lecture # 13 Passivity Positive Real

Nonlinear Control Lecture # 13 Passivity Nonlinear Control Lecture # 13 Passivity Positive Real Transfer Functions Definition 5.4 An m m proper rational transfer function matrix G ( s ) is positive real if poles of all elements of G ( s )

493 views • 20 slides

FTP File Transfer Protocol Computer Center, CS, NCTU FTP FTP File Transfer Protocol

FTP File Transfer Protocol Computer Center, CS, NCTU FTP FTP File Transfer Protocol Used to transfer data from one computer to another over the internet. Client-Server Architecture. Separated control/data connections.

1.19k views • 11 slides

Technician License Course Chapters 7 and 8 Lesson Module 16 Call Signs, Control Operators,

Technician License Course Chapters 7 and 8 Lesson Module 16 Call Signs, Control Operators, Station Identification and Third-Party Communications Call Signs Your Radio Name All amateur call signs have a prefix and a suffix

969 views • 71 slides

ex 1. compare and test : conditions Aside: save conditions b,a computes a - b , sets flags,

Conditionals and Control Flow Two key pieces 1. Comparisons and tests: check conditions 2. Transfer control: choose next instruction Control flow Processor Control-Flow State Familiar C constructs Condition codes (a.k.a. flags ) if else l

191 views • 8 slides

UI EE529 Static Transfer Switch Lecture 30 Switching model Measurements and Control

UI EE529 Static Transfer Switch Lecture 30 Switching model Measurements and Control Examples References: Look at Panel Session Archive and Custom Power Technology Development list at: http://grouper.ieee.org/groups/1409/

469 views • 21 slides

Lecture 5 First Order Transfer Function Models Process Control Prof. Kannan M. Moudgalya IIT

Lecture 5 First Order Transfer Function Models Process Control Prof. Kannan M. Moudgalya IIT Bombay Tuesday, 30 July 2013 1/38 Process Control First Order Models Outline 1. Thermal sensor as a first order system 2. Scilab demonstration of

739 views • 38 slides

SE350: Operating Systems Lecture 3: Process Management Outline Safe control transfer How

SE350: Operating Systems Lecture 3: Process Management Outline Safe control transfer How do we switch from one mode to the other? What should hardware provide? Native control of process Can processes create other processes?

723 views • 40 slides

A Novel Approach for Combined Joint Call Admission Control and Dynamic Bandwidth Adaptation in

Introduction Joint Call Admission Control and Bandwidth Adaptation Evaluation of the Concept Conclusion and Outlook A Novel Approach for Combined Joint Call Admission Control and Dynamic Bandwidth Adaptation in Heterogeneous Wireless Networks

404 views • 14 slides

Technology Acquisition & Transfer What is Technology Transfer ? Technology Transfer is

7/2/2019 Technology Acquisition & Transfer What is Technology Transfer ? Technology Transfer is the process by which technology is disseminated. It involves communication of relevant knowledge by the Transferor to the Recipient.

224 views • 11 slides

Everything is under control Optimal control and applications to aerospace problems E. Tr elat

Introduction Shooting method Orbit transfer Three-body problem Everything is under control Optimal control and applications to aerospace problems E. Tr elat Univ. Paris 6 (Labo. J.-L. Lions) and Institut Universitaire de France Roma,

723 views • 37 slides

6 INTRODUCTION TO MULTIVARIABLE CONTROL [3] 6.1 Transfer functions for MIMO systems [3.2] y

6 INTRODUCTION TO MULTIVARIABLE CONTROL [3] 6.1 Transfer functions for MIMO systems [3.2] y u v + G G 1 G 1 G 2 u z + z G 2 (a) Cascade system (b) Positive feed- back system Figure 52:

891 views • 51 slides

Delegation in Role-Based Access Control Controlling delegation Enforcing transfer delegation

Introduction Delegation operations in hierarchical RBAC Delegation in Role-Based Access Control Controlling delegation Enforcing transfer delegation Jason Crampton Hemanth Khambhammettu semantics Conclusion Information Security

959 views • 57 slides