Feature interaction: a critical review and considered forecast
Computer Networks: The International Journal of Computer and Telecommunications Networking
Use of Logic to Describe Enhanced Communications Services
FORTE '02 Proceedings of the 22nd IFIP WG 6.1 International Conference Houston on Formal Techniques for Networked and Distributed Systems
Feature interaction in policies
Computer Networks: The International Journal of Computer and Telecommunications Networking - Special issue: Directions in feature interaction research
Policy-enabled mechanisms for feature interactions: reality, expectations, challenges
Computer Networks: The International Journal of Computer and Telecommunications Networking - Special issue: Directions in feature interaction research
A feature-interaction benchmark for IN and beyond
IEEE Communications Magazine
Feature interactions in telecommunications systems
IEEE Communications Magazine
Policies and conflicts in call control
Computer Networks: The International Journal of Computer and Telecommunications Networking
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The need for policies to control calls is justified by the changing face of communications. An overview is given of a general architecture and language for policies. It is then shown how these are adapted for control of calls using the H.323 multimedia communications standard. Policy support for H.323 was created by extending an open source gatekeeper. The core policy language has been specialised to deal with call control in general, and for H.323 in particular. Examples are given of policies for H.323, illustrating how traditional features can be made to work more flexibly through use of policies. Examples are also provided of policies specific to H.323, and policies that can take advantage of other information such as the context of a call.