Abstract: A method and apparatus for transmitting messages between heterogeneous networks are disclosed. The method includes: receiving an IP multimedia subsystem (IMS) message from an IMS network; converting the format of the IMS message into the format of a non-IMS message and converting the sender terminal ID of the IMS message into the sender terminal ID of the non-IMS message; and sending the non-IMS message that includes the content and sender terminal ID of the non-IMS message to a receiver terminal of the non-IMS message through the home network of the non-IMS message. The disclosure can implement message interworking between an IMS user terminal and a non-IMS user terminal.

Abstract: A method and apparatus for transmitting messages between heterogeneous networks are disclosed. The method includes: receiving an IP multimedia subsystem (IMS) message from an IMS network; converting the format of the IMS message into the format of a non-IMS message and converting the sender terminal ID of the IMS message into the sender terminal ID of the non-IMS message; and sending the non-IMS message that includes the content and sender terminal ID of the non-IMS message to a receiver terminal of the non-IMS message through the home network of the non-IMS message. The disclosure can implement message interworking between an IMS user terminal and a non-IMS user terminal.

Abstract: A data service system and a method for access control. The data service system includes a plurality of service servers, through which terminals subscribe relevant services. The system further includes a public access control unit, which is connected to the plurality of service servers, in which the public access control information is set; the service server is used to obtain an authorization result of the service request and perform access control for the service according to the authorization result; the authorization result comprises the result of authorization for the service request from the terminal according to the public access control information. By using the data service system and access control method of the present invention, when a user subscribes a new service, it may be directly configured to use public access control list strategy to make all-in-one setup for certain public policies, and thus enrich the user's experience.