# Advanced feature overview

Source: https://developer.avalara.com/products/communications/integration-guides/communications-integration/qhd2267472044048/

Guide: Communications

# Advanced feature overview

In addition to the core requirement, your integration may want to be certified in one or more of the AFC advanced features.

The following advanced features are currently available:

-   [Voice](/communications-integration/cee0951636342663/)
-   [International](/communications-integration/jlc9638010660172/)