Colos -A System for Device Unaware and Position Dependent Communication Based on the Session Initiation Protocol

  • Odej Kao
  • Stefan Lietsch
Conference paper
Part of the IFIP — The International Federation for Information Processing book series (IFIPAICT, volume 190)


In this paper we present a new system that allows users to communicate easily and comfortably. It supports users by integrating several services such as location awareness and device independence. The user is for example not bound to one device nor must he know the exact address of the desired communication partner. He is also supported by all the information the system has or can generate from all of its services. The Session Initiation Protocol is used and extended in order to provide a scalable, secure and efficient platform for the communication system and its services. The basic functionalities are shown in a prototypical implementation.


Session Initiation Protocol Server Side User Register Location Update Decision Engine 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© International Federation for Information Processing 2005

Authors and Affiliations

  • Odej Kao
    • 1
  • Stefan Lietsch
    • 1
  1. 1.Center for Parallel ComputingUniversity of Paderborn PaderbornPaderbornGermany

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