A feature allowing sending calls to queues or extensions based on set criteria. In example, a skill based routing where calls are directed to an agent or person, who has the most appropriate skill set in order to address the problem.
The majority of PBX systems are able to output Call Detail Record (CDR) or Station Message Detail Record (SMDR). Basically the systems are the same and they contain detailed information of telephone activity inside the organization. Usually these reports contain information regarding all the incoming and outgoing calls, the information includes dates and times of the call, duration, direction, numbers dialed and Called ID.