Strategy and Description ring-all Rings all agents simultaneously. longest-idle-agent Rings the agent who has been idle the longest taking into account tier level. round-robin Rings the agent in position but remember last tried agent. top-down Rings the agent in order position starting from 1 for every member. agent-with-least-talk-time Rings the agent with least talk time. agent-with-fewest-calls Rings the agent with fewest calls. sequentially-by-agent-order Rings agents sequentially by tier & order. random Rings agents in random order. ring-progressively Rings agents in the same way as top-down, but keeping the previous members ringing (it basically leads to ring-all in the end).