Queue ranking is the feature designed for this exact business rule. Cisco's Webex Contact Center team configuration documentation allows administrators to rank queues for a team by media type, with lower numerical rank having higher priority. Cisco's routing documentation explains that ranked queues take precedence over queues without the same priority and that queue ranking can be used across media types. In the scenario, Sales must always be handled before Accounting, even when an Accounting call has waited longer. This is not a normal first-in-first-out queue rule; it is a cross-queue prioritization requirement.
Configuring capacity-based queues would change the queue operating model but would not impose Sales- before-Accounting precedence. Asking agents to ignore Accounting calls is not a system configuration and would produce inconsistent reporting and service levels. A Sales-only skill profile would prevent Accounting handling rather than defer it until Sales is empty. Queue ranking is the controlled team-based mechanism that satisfies the requirement. Reference: Cisco Help, Manage teams in Webex Contact Center; Understand Routing and Queueing in Webex Contact Center.