Remove a Do Not Call (DNC) entry from the approved list.

When to use. Unapprove a single number that was previously approved. To unapprove many at once, use POST /dnc/mass.

Parameters. id (path): the ID of the DNC entry to unapprove.

Returns. HTTP 204 with no content. If the entry is already unapproved, the call still returns 204. Returns an error if the entry cannot be unapproved, or if no entry with that ID exists.