Much business is conducted in large call centres where there are often several factors which require assessing when provisioning headsets. The initial aim of a contact/ call centre is to provide a hub for communications, be it customer support or sales.
For reasons of economy a call centre will often have a denser than average density of operator deployment.
Further, as there is an above average percentage of time spent on calls there will be higher levels of background noise over a smaller area.
Quite naturally this causes issues for both the operator and the customer as clear communications are of primary consideration. Poor sound levels not only make it more difficult to communicate, but also giver a poorer customer experience and, hence, impression of the company with which they are dealing.