Under the OTT threat, a telecom call-based ICT integration approach is studied to alleviate the revenue shrinkage. The CT-initiated IT services are thereby proposed to maintain existing telecom call service while adding OTT-like communication features on Internet. To do this, an IMS-based ICT service infrastructure is developed and the OpenFlow Controller is incorporated. Under such infrastructure the IMS call can correlate with the OpenFlow Controller and enable new ICT service creation and service control.
IMS is a good candidate to be integrated in ICT and IoT-converged network by utilizing its well-developed features such as AAA, QoS and multimedia support. This paper proposes the network architecture for ICT and IoT converged applications, and particular service enablers useful to ICT and IoT application development are introduced. Based on the architecture, a testbed has been constructed for innovative service experiments. Several service scenarios which are thought feasible for field trial are also presented. It is anticipated that the proposed architecture and the service enablers can fulfill the requirements of communication apart from developing new converged ICT and IoT applications.
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