Procoser Extensión en la Nube is a Chrome add-on developed by MDS Gateways. It is designed to be used with Procoser PBX, allowing users to receive call, voicemail, and chat messages directly from any webpage.

The latest version, 5.0, includes several bug fixes and improvements. It now properly shows chat messages, displays the correct portal frame, and opens new tabs on specified frames. The speed dial feature has also been enhanced, with the addition of "#" in storage and a new layout in local storage. Additionally, there is now a fix for dialing from the clipboard.

Previous versions of the add-on introduced features such as one-click dialing without the need to highlight the number first, a sidebar with access to the Procoser portal, and support for video meetings. The add-on also addressed issues with missed call and voicemail badge locations, incoming call notifications on Windows 10, and exporting of settings.

Overall, Procoser Extensión en la Nube provides a convenient way for Procoser PBX users to stay connected and manage their communications directly within their Chrome browser.