A home shaping company advertises special offers to shapers who place orders on Sundays. Sunday callers are routed a message that describes the special offer before the call is connected; to an…

A home shaping company advertises special offers to shapers who place orders on Sundays. Sunday callers are routed a message that describes the special offer before the call is connected; to an agent to take the order. The vector contains a conditional step to test for the day of week (goto step 11 if D=1 (Sunday) and step 11 plays the special offer message). Which Call Vectoring feature allows letters tobe used as conditions or thresholds in many vector commands?