Advertisement Platform, System for Playing Advertisement and Method Thereof

A system for playing advertisement, comprising a calling terminal, a calling local switch (LS), a called terminal, a called LS, a Service Control Point (SCP) of Intelligent Network (IN), a Service Switch Point (SSP) of IN and an Advertisement Platform (ADP);

• wherein the calling LS receives a call from the calling terminal to the called terminal and routes the call to the SSP;
• the SSP triggers an advertisement service in the SCP;
• the SCP returns an ADP route code to the SSP;
• the SSP routes the call to the called LS;
• the called LS returns the state of the called terminal to the SSP;
• the SSP instructs the ADP to play a ring back tone which includes advertisement via the SSP and the calling LS in turn.

A method for playing advertisement, comprising:

• receiving a call from a calling terminal and routing the call to a Service Switch Point (SSP) by a calling local switch (LS);
• triggering an advertisement service in a Service Control Point (SCP) by the SSP;
• returning an Advertisement Platform (ADP) route code to the SSP by the SCP;
• routing the call to a called LS, and returning to the SSP the state of the called terminal by the called LS;
• playing a ring back tone which includes advertisement to the calling terminal by the SSP if the state of called terminal is the preset advertisement playing state.