In this paper, a design scheme of conditional access system for IPTV supporting multi service providers is presented and implemented.

The curriculum\'s teaching make students full experience the inseparable relations of industrial design and the commercial, and make students grasp some elementary knowledge in the commercial operation.

Probe into the Approach to Technology Innovation by Telecom Operators;

Discuss the impact on the operator of China mobile communication of accession to the WTO;

The Research of Customer Delivered Value Management on the Domestic Mobile Communication Operators;

As the pioneers of the development of social informationization in our country, the telecom operators not only provide the correspondence platform for the E-commerce, but also should make the best of their own resource to develop E-commerce to extend transaction scope, reduce transaction cost, promote service means, perfect marketing system and exploit new profit growth point.

The article introduced the current status of carriers,as well as the growth strategy of the whole business operation.

This opinion has been approved by all carriers.

This article presents some design principles of IP private network for bearing carrier-grade service,the main content refer to service orientation,network architecture.