A Twilio-powered call tracking service has been integrated with HubSpot, a popular marketing automation tool, allowing users to track web leads and manage phone conversions directly within the HubSpot interface. The integration aims to address the challenge of tracking customers who visit websites but then call instead of clicking to place an order or make an appointment. With this integration, website visitors will be shown a phone number assigned by Call Tracking Metrics, and information gathered by Call Tracking Metrics will be available in HubSpot. To set up the integration, users need to register for an account with Call Tracking Metrics and click "enable sync to HubSpot" under account settings. The service was built on Twilio due to its flexibility and cost-effectiveness, allowing Captico to focus on strategic internet marketing.