NetWare 2018
September 16 - 20, 2018 - Venice, Italy

  • SENSORCOMM 2018, The Twelfth International Conference on Sensor Technologies and Applications
  • SENSORDEVICES 2018, The Ninth International Conference on Sensor Device Technologies and Applications
  • SECURWARE 2018, The Twelfth International Conference on Emerging Security Information, Systems and Technologies
  • AFIN 2018, The Tenth International Conference on Advances in Future Internet
  • CENICS 2018, The Eleventh International Conference on Advances in Circuits, Electronics and Micro-electronics
  • ICQNM 2018, The Twelfth International Conference on Quantum, Nano/Bio, and Micro Technologies
  • FASSI 2018, The Fourth International Conference on Fundamentals and Advances in Software Systems Integration
  • GREEN 2018, The Third International Conference on Green Communications, Computing and Technologies

SoftNet 2018
October 14 - 18, 2018 - Nice, France

  • ICSEA 2018, The Thirteenth International Conference on Software Engineering Advances
  • ICSNC 2018, The Thirteenth International Conference on Systems and Networks Communications
  • CENTRIC 2018, The Eleventh International Conference on Advances in Human-oriented and Personalized Mechanisms, Technologies, and Services
  • VALID 2018, The Tenth International Conference on Advances in System Testing and Validation Lifecycle
  • SIMUL 2018, The Tenth International Conference on Advances in System Simulation
  • SOTICS 2018,The Eighth International Conference on Social Media Technologies, Communication, and Informatics
  • INNOV 2018, The Seventh International Conference on Communications, Computation, Networks and Technologies
  • HEALTHINFO 2018, The Third International Conference on Informatics and Assistive Technologies for Health-Care, Medical Support and Wellbeing

NexTech 2018
November 18 - 22, 2018 - Athens, Greece

  • UBICOMM 2018, The Twelfth International Conference on Mobile Ubiquitous Computing, Systems, Services and Technologies
  • ADVCOMP 2018, The Twelfth International Conference on Advanced Engineering Computing and Applications in Sciences
  • SEMAPRO 2018, The Twelfth International Conference on Advances in Semantic Processing
  • AMBIENT 2018, The Eighth International Conference on Ambient Computing, Applications, Services and Technologies
  • EMERGING 2018, The Tenth International Conference on Emerging Networks and Systems Intelligence
  • DATA ANALYTICS 2018, The Seventh International Conference on Data Analytics
  • GLOBAL HEALTH 2018, The Seventh International Conference on Global Health Challenges
  • CYBER 2018, The Third International Conference on Cyber-Technologies and Cyber-Systems

DigitalWorld 2019
February 24 - 28, 2019 - Athens, Greece

  • ICDS 2019, The Thirteenth International Conference on Digital Society and eGovernments
  • ACHI 2019, The Twelfth International Conference on Advances in Computer-Human Interactions
  • GEOProcessing 2019, The Eleventh International Conference on Advanced Geographic Information Systems, Applications, and Services
  • eTELEMED 2019, The Eleventh International Conference on eHealth, Telemedicine, and Social Medicine
  • eLmL 2019, The Eleventh International Conference on Mobile, Hybrid, and On-line Learning
  • eKNOW 2019, The Eleventh International Conference on Information, Process, and Knowledge Management
  • ALLSENSORS 2019, The Fourth International Conference on Advances in Sensors, Actuators, Metering and Sensing
  • SMART ACCESSIBILITY 2019, The Fourth International Conference on Universal Accessibility in the Internet of Things and Smart Environments

NexComm 2019
March 24 - 28, 2019 - Valencia, Spain

  • ICDT 2019, The Fourteenth International Conference on Digital Telecommunications
  • SPACOMM 2019, The Eleventh International Conference on Advances in Satellite and Space Communications
  • ICN 2019, The Eighteenth International Conference on Networks
  • ICONS 2019, The Fourteenth International Conference on Systems
  • MMEDIA 2019, The Eleventh International Conference on Advances in Multimedia
  • PESARO 2019, The Ninth International Conference on Performance, Safety and Robustness in Complex Systems and Applications
  • CTRQ 2019, The Twelfth International Conference on Communication Theory, Reliability, and Quality of Service
  • ALLDATA 2019, The Fifth International Conference on Big Data, Small Data, Linked Data and Open Data
  • SOFTENG 2019, The Fifth International Conference on Advances and Trends in Software Engineering

ComputationWorld 2019
May 5 - 9, 2019 - Venice, Italy

  • SERVICE COMPUTATION 2019, The Eleventh International Conference on Advanced Service Computing
  • CLOUD COMPUTING 2019, The Tenth International Conference on Cloud Computing, GRIDs, and Virtualization
  • FUTURE COMPUTING 2019, The Eleventh International Conference on Future Computational Technologies and Applications
  • COGNITIVE 2019, The Eleventh International Conference on Advanced Cognitive Technologies and Applications
  • ADAPTIVE 2019, The Eleventh International Conference on Adaptive and Self-Adaptive Systems and Applications
  • CONTENT 2019, The Eleventh International Conference on Creative Content Technologies
  • PATTERNS 2019, The Eleventh International Conference on Pervasive Patterns and Applications
  • COMPUTATION TOOLS 2019, The Tenth International Conference on Computational Logics, Algebras, Programming, Tools, and Benchmarking
  • BUSTECH 2019, The Ninth International Conference on Business Intelligence and Technology

InfoSys 2019
June 2 - 6, 2019 - Athens, Greece

  • ICNS 2019, The Fiteenth International Conference on Networking and Services
  • ICAS 2019, The FIfteenth International Conference on Autonomic and Autonomous Systems
  • ENERGY 2019, The Ninth International Conference on Smart Grids, Green Communications and IT Energy-aware Technologies
  • WEB 2019, The Sseventh International Conference on Building and Exploring Web Based Environments
  • DBKDA 2019, The Eleventh International Conference on Advances in Databases, Knowledge, and Data Applications
  • SIGNAL 2019, The Fourth International Conference on Advances in Signal, Image and Video Processing
  • BIOTECHNO 2019, The Eleventh International Conference on Bioinformatics, Biocomputational Systems and Biotechnologies

(to be completed)

 


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 - 2017 © ThinkMind. All rights reserved.
Read Terms of Service and Privacy Policy.