Notions of SDP (Service Delivery Platform) has been widely used in Telcos albeit without a common industry understanding. SDP projects have spearheaded next generations of Telco service provider (SP) services and their forays into new business models. Recently, Telco players tried very actively to understand how to take advantage of Cloud Computing to improve efficiencies or open new opportunities for them. Today most initial activities have often started disconnected from Consumer, VAS and

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... rprise activities where SDPs are used. The main contributions of this paper are in explaining how to understand SDPs in the context of Cloud Computing and in positioning Cloud Computing and SDPs from an architecture for Telcos that want to reduce cost and complexity and increase efficiencies, scalability and availability of existing SDP and communication services as well as explore new business models with differentiators that could favor Telco SPs over other more conventional cloud providers. Such recommednatiosn and blueprints have never been discussed before as far as we know.