Programmable call processing system and method

A method of detecting a trigger condition during processing of a call, comprising:

• identifying a particular point in a traversal of the call;
• accessing a trigger rule item pointer associated with the particular point in the call traversal;
• locating a trigger rule item in response to the trigger rule item pointer, the trigger rule item corresponding to a decision tree to identify the trigger condition;
• accessing a criteria node associated with the trigger rule item, the criteria node including information to identify the trigger condition for its associated trigger rule item;
• identifying a list of match values associated with the criteria node;
• comparing the match values with information associated with the particular point in the call traversal;
• accessing a trigger data index in response to one of the match values being successfully compared to the particular point in the call traversal;
• determining an occurrence of the trigger condition in response to the trigger data index.