Add a simple call queue.

Go to PBX > Call Features > Queues, click Add.

Specify a Queue Number and Queue Name for the queue.

Optional: In the Password field, enter a password for dynamic agent to log in and log out of the queue.

Select a Ring Strategy for the call.

ringall: ringall ring all available agents until one answers (default).

leastrecent: ring agent which was least recently called by this queue.

fewestcalls: ring the agent with fewest completed calls from this queue

random: ring random agent

rrmemory: round robin with memory, remember where we left off last ring pass

rrordered: same as rrmemory, except the queue member order from config file is preserved

linear: rings agents in the order specified, for dynamic agents in the order they logged in

wrandom: random using the member

Select Static Agents and Dynamic Members for the queue.

Static agents: A static agents will always stay in the queue.

Dynamic agents: A dynamic agent can log in or log out a queue at any time.

Set the Agent Timeout, define how long the phone should keep ringing before it considers the call unanswered by that agent.

Click Save and Apply.