Returns a list of all soundclip role types available for use.

The function takes no arguments though you should supply an empty array as a placeholder for the arguments.

Return values

Upon success, the function will return a set of records with the following fields:

• role - the role name (as should be supplied in the "roles" arguments to telecoms.soundclip.create and telecoms.soundclip.edit)
• desc - a brief description of the role