A system and method of enabling transmission control protocol (TCP) splice between a client application and a server, while maintaining control of the connections by a content-based charging proxy. The system framework includes a TCP splicing module for splicing connections between a client application and a server, an application proxy (e.g., content-based charging proxy) for redirecting a request of the client application, and a content-based charging engine for determining the classification of the data flow between the client application and the server. If the data flow has a predetermined classification or a triggering event has been detected, the content-based charging engine transfers control of the connections to the application proxy. The application proxy, for example, can redirect the client application to a predetermined service or source based on the classification of the data flow.