Method and system for disconnecting a terminating connection leg (leg2) for enhanced dialed services in a mobile intelligent network

A method of disconnecting a terminating connection leg in a dialed service for a mobile subscriber in a mobile switching center (MSC) for providing a mobile intelligent network service to the mobile subscriber under a control of a service control point (SCP) in a mobile intelligent network, comprising the steps of:

• setting up a mobile originating (MO) call;
• determining whether the MO call is allowed;
• performing a service initialization procedure for handling the MO call, if the MO call is allowed;
• performing an MO call dialed service procedure, if a result of the service initialization procedure is “pass”;
• controlling an originating connection leg under a control of the SCP, if a result of the MO call dialed service procedure is “leg1_only”;
• and
• providing available supplementary functions after disconnecting the terminating connection leg.

A method of disconnecting a terminating connection leg in a dialed service for a mobile subscriber in a mobile switching center (MSC) for providing a mobile intelligent network service to the mobile subscriber under a control of a service control point (SCP) in a mobile intelligent network, comprising the steps of:

• receiving a message requesting a mobile forwarding (MF) call handling for the mobile subscriber in an idle state;
• performing a service initialization procedure for handling the MF call;
• performing an MF call dialed service procedure, if a result of the service initialization procedure is “pass”;
• and
• controlling an originating connection leg under a control of the SCP, if a result of the MF call dialed service procedure is “leg1_only”, and providing available supplementary functions after disconnecting the terminating connection leg.

A system for disconnecting a terminating connection leg, while maintaining an originating connection leg for a call in a customized applications for mobile network enhanced logic (CAMEL) service network, comprising:

• a service control point (SCP) for controlling CAMEL services;
• and
• a mobile switching center (MSC) for providing the CAMEL services to mobile subscribers under a control of the SCP,
• wherein the MSC performs the steps of:
• receiving a message (Int_Disconnect_Leg (Leg2)) requesting disconnection of the terminating connection leg from the SCP in a DP_Analysed_Info waiting state, after transmitting a service request message to the SCP in a call initialization procedure for handling of one of a mobile originating (MO) and a mobile forwarding (MF) call;
• transmitting an acknowledgement (Int_Disconnect_Leg_Ack) for the message requesting disconnection of the terminating connection leg (Leg2) to the SCP, releasing the terminating connection leg with an originating connection leg (Leg1) maintained, and entering a terminating connection leg disconnected state (Leg2_Disconnected);
• setting a result of the call initialization procedure to “terminating connection leg disconnected (Leg1_Only)”, upon receiving a message (Int_Continue) requesting call continuation from the SCP in the Leg2_Disconnected state;
• upon receipt of a message (Int_Continue_With_Argument) requesting call continuation according to modified information in the Leg2_Disconnected state, modifying stored information by information included in the Int_Continue_With_Argument message, and setting the result of the call initialization procedure to “Leg1_Only”;
• and
• providing available supplementary functions after disconnecting the terminating connection leg under a control of the SCP, if a result of the call initialization procedure is “Leg1_Only”.