We use VoIP phones in our company. Some people calls and each one connected to first free operator, and each people calls us once a week, we need one more option to make better experience for our customers: for example John calls us and connected to Mary and they talk then John gives Mary some information about himself and Mary advise him. So when john calls us again, we need a system that identify him and switch his call to Mary automatically! so second calls and third calls always connected to a familiar operators, and this helps customers to have better experience.
Does it possible? How should i do this? and what we need?