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Citation

Kolberg M & Magill E (2007) Managing Feature Interactions between Distributed SIP Call Control Services. Computer Networks, 51 (2), pp. 536-557. https://doi.org/10.1016/j.comnet.2006.08.006

Abstract
The Session Initiation Protocol (SIP) is widely used as a call control protocol for Voice over IP (VoIP), and indeed commercial implementations are readily available off-the-shelf. SIP supports flexible service provisioning not only through third parties, but also end-users. Laboratory experience shows that as these services are interworking they are subject to the feature interaction problem. Feature interactions may considerably delay service deployment and hence are a threat to rapid service provisioning. This paper investigates the feature interaction problem in SIP-based services and investigates the application of a pragmatic approach. This runtime approach does not require any detailed information about the services and hence can be applied in a competitive market. Furthermore, the technique is particularly strong in handling interactions between distributed services – a key characteristic of SIP-based services. Moreover, the approach is fully distributed without any centralised components, and includes detection and resolution of feature interactions.

Keywords
Telecommunications services; Voice over IP; Session initiation protocol; SIP; Feature interaction; Runtime approach; Computer network protocols; Internet telephony; Multimedia systems

Journal
Computer Networks: Volume 51, Issue 2