You can quickly customize call flows with Twilio Studio and TaskRouter to receive calls on your Twilio phone number and put callers into a call queue while they listen to music until an agent is available. Agents use their web browser to manage their status and are connected with the caller using their computer, microphone, or Twilio Client. To implement this, you create a TaskRouter workspace, configure a TaskQueue and Workflow, deploy an agent application, and set up an IVR in Studio to welcome callers and put them into the queue. You also need to buy a Twilio phone number and test the application to ensure it's working correctly. Once implemented, you can scale your call center by adding more workers, queues, and features like timeout and escalation logic.