Collaboration of IMS and SDN to enable new ICT service creation

Abstract

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.

Implementation of IMS/NGN Transport Stratum Based on the SDN Concept

“…Ref. [ 20 ] provides a different approach to the cooperation of IMS and SDN concepts. In the proposed architecture and service scenarios, the SIP Application Server (SIP AS) mediates every multimedia session and uses the REST API to communicate with the SDN controller and manage the flow tables in the programmable switches.…”