InfoSys 2024 Congress
March 10, 2024 to March 14, 2024 - Athens, Greece

  • ICNS 2024, The Twentieth International Conference on Networking and Services
  • ICAS 2024, The Twentieth International Conference on Autonomic and Autonomous Systems
  • ENERGY 2024, The Fourteenth International Conference on Smart Grids, Green Communications and IT Energy-aware Technologies
  • WEB 2024, The Twelfth International Conference on Building and Exploring Web Based Environments
  • DBKDA 2024, The Sixteenth International Conference on Advances in Databases, Knowledge, and Data Applications
  • SIGNAL 2024, The Ninth International Conference on Advances in Signal, Image and Video Processing
  • BIOTECHNO 2024, The Sixteenth International Conference on Bioinformatics, Biocomputational Systems and Biotechnologies
  • AIHealth 2024, The First International Conference on AI-Health

InfoWare 2024 Congress
March 10, 2024 to March 14, 2024 - Athens, Greece

  • ICCGI 2024, The Nineteenth International Multi-Conference on Computing in the Global Information Technology
  • ICWMC 2024, The Twentieth International Conference on Wireless and Mobile Communications
  • VEHICULAR 2024, The Thirteenth International Conference on Advances in Vehicular Systems, Technologies and Applications
  • INTERNET 2024, The Sixteenth International Conference on Evolving Internet
  • COLLA 2024, The Fourteenth International Conference on Advanced Collaborative Networks, Systems and Applications
  • INTELLI 2024, The Thirteenth International Conference on Intelligent Systems and Applications
  • VISUAL 2024, The Ninth International Conference on Applications and Systems of Visual Paradigms
  • HUSO 2024, The Tenth International Conference on Human and Social Analytics
  • BRAININFO 2024, The Ninth International Conference on Neuroscience and Cognitive Brain Information

DataSys 2024 Congress
April 14, 2024 to April 18, 2024 - Venice, Italy

  • AICT 2024, The Twentieth Advanced International Conference on Telecommunications
  • ICIW 2024, The Nineteenth International Conference on Internet and Web Applications and Services
  • ICIMP 2024, The Nineteenth International Conference on Internet Monitoring and Protection
  • SMART 2024, The Thirteenth International Conference on Smart Cities, Systems, Devices and Technologies
  • IMMM 2024, The Fourteenth International Conference on Advances in Information Mining and Management
  • INFOCOMP 2024, The Fourteenth International Conference on Advanced Communications and Computation
  • MOBILITY 2024, The Fourteenth International Conference on Mobile Services, Resources, and Users
  • SPWID 2024, The Tenth International Conference on Smart Portable, Wearable, Implantable and Disability-oriented Devices and Systems
  • ACCSE 2024, The Ninth International Conference on Advances in Computation, Communications and Services

ComputationWorld 2024 Congress
April 14, 2024 to April 18, 2024 - Venice, Italy

  • SERVICE COMPUTATION 2024, The Sixteenth International Conference on Advanced Service Computing
  • CLOUD COMPUTING 2024, The Fifteenth International Conference on Cloud Computing, GRIDs, and Virtualization
  • FUTURE COMPUTING 2024, The Sixteenth International Conference on Future Computational Technologies and Applications
  • COGNITIVE 2024, The Sixteenth International Conference on Advanced Cognitive Technologies and Applications
  • ADAPTIVE 2024, The Sixteenth International Conference on Adaptive and Self-Adaptive Systems and Applications
  • CONTENT 2024, The Sixteenth International Conference on Creative Content Technologies
  • PATTERNS 2024, The Sixteenth International Conference on Pervasive Patterns and Applications
  • COMPUTATION TOOLS 2024, The Fifteenth International Conference on Computational Logics, Algebras, Programming, Tools, and Benchmarking
  • BUSTECH 2024, The Fourteenth International Conference on Business Intelligence and Technology
  • AIVR 2024, The First International Conference on Artificial Intelligence and Immersive Virtual Reality

NexComm 2024 Congress
May 26, 2024 to May 30, 2024 - Barcelona, Spain

  • ICDT 2024, The Nineteenth International Conference on Digital Telecommunications
  • SPACOMM 2024, The Sixteenth International Conference on Advances in Satellite and Space Communications
  • ICN 2024, The Twenty-Third International Conference on Networks
  • ICONS 2024, The Nineteenth International Conference on Systems
  • MMEDIA 2024, The Sixteenth International Conference on Advances in Multimedia
  • PESARO 2024, The Fourteenth International Conference on Performance, Safety and Robustness in Complex Systems and Applications
  • CTRQ 2024, The Seventeenth International Conference on Communication Theory, Reliability, and Quality of Service
  • ALLDATA 2024, The Tenth International Conference on Big Data, Small Data, Linked Data and Open Data
  • SOFTENG 2024, The Tenth International Conference on Advances and Trends in Software Engineering

DigitalWorld 2024 Congress
May 26, 2024 to May 30, 2024 - Barcelona, Spain

  • ICDS 2024, The Eighteenth International Conference on Digital Society
  • ACHI 2024, The Seventeenth International Conference on Advances in Computer-Human Interactions
  • GEOProcessing 2024, The Sixteenth International Conference on Advanced Geographic Information Systems, Applications, and Services
  • eTELEMED 2024, The Sixteenth International Conference on eHealth, Telemedicine, and Social Medicine
  • eLmL 2024, The Sixteenth International Conference on Mobile, Hybrid, and On-line Learning
  • eKNOW 2024, The Sixteenth International Conference on Information, Process, and Knowledge Management
  • ALLSENSORS 2024, The Ninth International Conference on Advances in Sensors, Actuators, Metering and Sensing
  • SMART ACCESSIBILITY 2024, The Ninth International Conference on Universal Accessibility in the Internet of Things and Smart Environments

IARIA Congress 2024, The 2024 IARIA Annual Congress on Frontiers in Science, Technology, Services, and Applications
June 30, 2024 to July 04, 2024 - Porto, Portugal

DigiTech 2024 Congress
June 30, 2024 to July 04, 2024 - Porto, Portugal

  • DIGITAL 2024, Advances on Societal Digital Transformation
  • IoTAI 2024, The First International Conference on IoT-AI
  • GPTMB 2024, The First International Conference on Generative Pre-trained Transformer Models and Beyond

NexTech 2024 Congress
September 29, 2024 to October 03, 2024 - Venice, Italy

  • UBICOMM 2024, The Eighteenth International Conference on Mobile Ubiquitous Computing, Systems, Services and Technologies
  • ADVCOMP 2024, The Eighteenth International Conference on Advanced Engineering Computing and Applications in Sciences
  • SEMAPRO 2024, The Eighteenth International Conference on Advances in Semantic Processing
  • AMBIENT 2024, The Fourteenth International Conference on Ambient Computing, Applications, Services and Technologies
  • EMERGING 2024, The Sixteenth International Conference on Emerging Networks and Systems Intelligence
  • DATA ANALYTICS 2024, The Thirteenth International Conference on Data Analytics
  • GLOBAL HEALTH 2024, The Thirteenth International Conference on Global Health Challenges
  • CYBER 2024, The Ninth International Conference on Cyber-Technologies and Cyber-Systems

SoftNet 2024 Congress
September 29, 2024 to October 03, 2024 - Venice, Italy

  • ICSEA 2024, The Nineteenth International Conference on Software Engineering Advances
  • ICSNC 2024, The Nineteenth International Conference on Systems and Networks Communications
  • CENTRIC 2024, The Seventeenth International Conference on Advances in Human-oriented and Personalized Mechanisms, Technologies, and Services
  • VALID 2024, The Sixteenth International Conference on Advances in System Testing and Validation Lifecycle
  • SIMUL 2024, The Sixteenth International Conference on Advances in System Simulation
  • SOTICS 2024, The Fourteenth International Conference on Social Media Technologies, Communication, and Informatics
  • INNOV 2024, The Thirteenth International Conference on Communications, Computation, Networks and Technologies
  • AISyS 2024, The First International Conference on AI-based Systems and Services

SocSys 2024 Congress
November 03, 2024 to November 07, 2024 - Nice, France

NetWare 2024 Congress
November 03, 2024 to November 07, 2024 - Nice, France

  • SENSORCOMM 2024, The Eighteenth International Conference on Sensor Technologies and Applications
  • SENSORDEVICES 2024, The Fifteenth International Conference on Sensor Device Technologies and Applications
  • SECURWARE 2024, The Eighteenth International Conference on Emerging Security Information, Systems and Technologies
  • AFIN 2024, The Sixteenth International Conference on Advances in Future Internet
  • CENICS 2024, The Seventeenth International Conference on Advances in Circuits, Electronics and Micro-electronics
  • ICQNM 2024, The Eighteenth International Conference on Quantum, Nano/Bio, and Micro Technologies
  • FASSI 2024, The Tenth International Conference on Fundamentals and Advances in Software Systems Integration
  • GREEN 2024, The Ninth International Conference on Green Communications, Computing and Technologies
  • HEALTHINFO 2024, The Ninth International Conference on Informatics and Assistive Technologies for Health-Care, Medical Support and Wellbeing

 


ThinkMind // International Journal On Advances in Telecommunications, volume 4, numbers 3 and 4, 2011 // View article tele_v4_n34_2011_6


Media Connectivity in SIP Infrastructures: Provider Awareness, Approaches, Consequences, and Applicability

Authors:
Stefan Gasterstädt
Markus Gusowski

Keywords: Voice over IP (VoIP), Session Initiation Protocol (SIP), Media Connectivity, Connectivity Awareness, SCTP.

Abstract:
In SIP-based Voice over IP infrastructures, media data is usually exchanged directly between the endpoints using RTP without provider interaction. In contrast to the Public Switched Telephone Network where the delivery of all messages is the provider’s responsibility, a SIP provider is not aware of media connectivity, i. e., whether a call was successful or not. This may lead to incorrect behavior when a Voice over IP provider offers services beyond signaling (for example, payment, prevention of Spam over Internet Telephony). Most existing mechanisms relating to media connectivity only aim at increasing the chance for connectivity or are endpoint centric and cannot achieve media connectivity awareness for the provider. We present and compare several approaches solving this problem that use both implicit and explict connectivity detection and notification mechanisms. Our favoured approach uses a set of behavioral rules for the user agents and implicit connectivity notification to achieve connectivity awareness. We also suggest SCTP for media transport and as an efficient connectivity detection mechanism. Besides conforming to the existing SIP standards and minimizing protocol changes, our solution is able to tolerate "lying" user agents. Measurements with our prototype SIP proxy implementation show that the impact on provider side call processing performance is negligible.

Pages: 276 to 292

Copyright: Copyright (c) to authors, 2011. Used with permission.

Publication date: April 30, 2012

Published in: journal

ISSN: 1942-2601

SERVICES CONTACT
2010 - 2022 © ThinkMind. All rights reserved.
Read Terms of Service and Privacy Policy.