Method and system for processing calls wherein the display of calling party ID information has been inhibited

For use in an Advanced Intelligent Network (AIN) having at least one Service Switching Point (SSP) in electrical communication with a Service Control Point (SCP) or Adjunct Processor (AP) via an appropriate signalling link, said SCP/AP having corresponding service logic, a method for detecting and processing calls from a calling party to a subscribing called party wherein the display of calling party ID information is unavailable or has been inhibited, comprising:

• detecting an AIN Termination Attempt trigger at said SSP when attempting to terminate a call from said calling party to said subscribing called party;
• suspending normal call processing at said SSP upon detection of said AIN Termination Attempt trigger;
• generating an AIN Termination Attempt message at said SSP for receipt by said SCP/AP, said AIN Termination Attempt message requesting further call processing instructions;
• determining at said SCP/AP whether said calling party ID information has been inhibited;
• and
• if said calling party ID information has been inhibited, generating a predetermined response message at said SCP/AP for receipt by said SSP instructing said SSP to intercept said call, play a selected terminating announcement or request said calling party to display its ID information and perform further call processing.