System operators are chatted with in the same window as site visitors. The need for inter-operator chat is felt especially strongly if the company employees are located in different offices or work remotely.
For instance, a manager does not possess sufficient knowledge on an issue the visitor is interested in, and wants to redirect a call. He notices that the chat number indicator for the expert on such issues shows a relatively high load. In this case, having called the colleague for dialog in one left-click, he can ascertain whether the colleague is ready to accept a call from another visitor.