# Clear Channel Overview

An MSPP channel is made up of one or more filters that transform a real-time flow of voice or fax data from one form to another. The application creates the MSPP channels independently of MSPP endpoints and then uses channels to connect pairs of compatible endpoints. Clear channel is a new channel type for transparently passing any data between two endpoints.

The following table provides an overview of the information provided with mspCreateChannel for creating a clear channel:

Channel type | Address structure | Parameter structure
Clear | Board number Channel type Enable or disable special filter attributes (with the FilterAttribs parameter) | Jitter parameters Voice encoder parameters Voice decoder parameters