A business engaged in telephone solicitation by live operators (soliciting sales, receiving orders, helping customers use goods or services, or soliciting, administering or collecting bank or retail credit accounts) or in marketing or opinion research (live telephone interviews by a business whose principal business is polls and surveys) may use a telephone monitoring device to record or listen to those conversations by its employees only for service quality control, education or training of the employees or contractors doing that work, or internal research on it, and only with the consent of at least one active party to the conversation monitored.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.