The Q.1238.x series of ITU-T Recommendations defines the Intelligent Network (IN) Application Protocol (INAP) for IN Capability Set 3 (IN CS-3), the INAP for IN CS-3 based upon IN CS-2 Q. 1224 and Q.1228 specifications (1997), and the general rules for INAP provided in ITU-T Q. 1208, and is consistent with the scope of IN CS-3 as defined in ITU-T Q.1231.