JustCall is a Chrome extension developed by SaaS Labs that allows users to click to call phone numbers available on any web page. It is designed to enhance sales calls and track all calls made and received.

With JustCall, users can easily make and receive sales calls directly from their Chrome browser. The extension integrates with various CRM tools, allowing users to add click to call and click to text buttons beside valid phone numbers in their CRM. Additionally, JustCall notifies users when there is an incoming phone call on their JustCall phone number, and they can answer incoming calls directly from their Chrome browser.

It is important to note that this extension requires a paid JustCall.io account, with pricing starting at $25/user/month.

Overall, JustCall is a useful tool for sales professionals who want to streamline their calling process and track their calls within their CRM tool.