I understand the frustration of sifting through hundreds of "fake" resumes where candidates can't code a fiz-buzz, but from the other end it is a total waste of

I understand the frustration of sifting through hundreds of "fake" resumes where candidates can't code a fiz-buzz, but from the other end it is a total waste of my time spending 20 minutes of my time solving these coding challenges every time I want to know more about a prospective position. If would be nice if the recruiter agencies (who are actually getting paid to do a job), would hire people qualified to understand if a candiadate is or not up to par for the job from a quick email or phone call.