The ASA for a split/skill includes the time that is spent in the split/skill queue and the time ringing at an agent. The ASA for a VDN includes the time spent in vector processing, the time spent in queue, and the time ringing for the VDN associated with the call when it was answered. This server-generated, rolling ASA is a running, weighted average calculation. In general, the ASA will not match the average speed of answer on CMS.