Method and system for preserving service node resources and reducing clipping effect

A method for providing simultaneous ringing service comprising:

• associating telephone numbers of a primary telephone and a secondary telephone in a database;
• detecting an incoming call to the primary telephone;
• determining an operational status of a service node;
• checking busy/idle status of the primary telephone and the secondary telephone if the service node is operational;
• generating by the service node a first outgoing call to the primary telephone and a second outgoing call to the secondary telephone if, but only if, both the primary telephone and the secondary telephone are idle;
• and
• upon answering by the primary telephone or the secondary telephone, connecting the incoming call to the telephone that has answered and canceling the call to the other telephone that has not answered.

An advanced intelligent network telecommunication system comprising:

• a first service switching point connected to a primary telephone of a subscriber, the primary telephone having a primary telephone number;
• a service control point having a database associating the primary telephone number with a secondary telephone number of a secondary telephone of the subscriber;
• means for detecting an incoming call to the primary telephone;
• means for determining an operational status of a service node associated with the service control point;
• and
• means for checking busy/idle status of the primary telephone and secondary telephone,
• wherein when the incoming call to the primary telephone is detected, the service control point determines the operational status of the service node, and the service control point checks the busy/idle status of the primary telephone and secondary telephone if the service node is operational, and the service control point forwards the incoming call to the service node for generating a first outgoing call to the primary telephone and a second outgoing call to the secondary telephone if, but only if, both the primary telephone and the secondary telephone are idle.

A method for providing simultaneous ringing service comprising:

• associating a first telephone number of a wireline telephone and a second telephone number of a wireless telephone in a database accessible by a service control point;
• detecting an incoming call to the wireline telephone;
• determining by the service control point an operational status of a service node associated with the service control point;
• checking by the service control point busy/idle status of the wireline telephone and the wireless telephone if the service node is operational;
• generating by the service node a first outgoing call to the wireless telephone and a second outgoing call to the wireline telephone if, but only if, both the wireline telephone and the wireless telephone are available to receive calls;
• and
• after one of the wireline telephone and the wireless telephone answers one of the first outgoing call and the second outgoing call, connecting the incoming call to the telephone that has answered and canceling the remaining one of the first outgoing call and the second outgoing call.

A method for making simultaneous ringing calls comprising:

• detecting by a switch an incoming call from a caller telephone to a primary telephone of a subscriber;
• querying a service control point by the switch for a secondary telephone associated with the subscriber;
• determining by the service control point an operational status of a service node associated with the service control point;
• checking by the service control point busy/idle status of the primary telephone and the secondary telephone if the service node is operational;
• and
• generating by the service node a first ongoing call to the primary telephone and a second outgoing call to the secondary telephone if, but only if, both the primary telephone and the secondary telephone are idle.